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Pluracol®& Lupraphen® Polyols | BASF Polyurethanes

Pluracol®& Lupraphen® Polyols | BASF Polyurethanes

The Pluracol ® polyol portfolio offers a diverse range of polyether polyols including conventional and graft polyols with the following typical values. The Pluracol graft series are polyether products containing dispersed particles of co-polymerized styrene and acrylonitrile, or SAN particles.

Polyol from castor oil and epoxy resin for PU Coatings

Polyol from castor oil and epoxy resin for PU Coatings

reaction From GPC average molecular weight of polyol was found to be 963, which was very well comparable to the end group analysis value (hydroxyl value 231, Molecular weight 972) and with the expected theoretical value (936). The results indicate that the reaction of epoxy resin with ricinoleic acid was complete. Chemical differences are .

CO NVERGE® Polyols in Polyurethane Cast Elastomers

CO NVERGE® Polyols in Polyurethane Cast Elastomers

1. Polyol (100 parts) and BDO (when used) were combined and heated in a vacuum oven (80 °C, 23 Torr) for 2 hrs. 2. Catalyst (Dabco T12, 0.001 parts) was mixed into the polyol. 3. Prepolymer (Lupranate MP102) was added to the hot polyol and mixed by hand for 20s.

Reactor modeling and recipe optimization of polyether .

Reactor modeling and recipe optimization of polyether .

May 17, 2013 · The reactor modeling and recipe optimization of conventional semibatch polyether polyol processes, in particular for the polymerization of propylene oxide to make .

Polyester Polyols for Water-Resistant Polyurethane Coatings

Polyester Polyols for Water-Resistant Polyurethane Coatings

Jun 15, 2003 · The polyurethane dispersions were prepared making use of the so-called acetone process: the addition reaction between the dimer-based polyester polyols, dimethylolpropionic acid and isocyanates that take place in the presence of water-dilutable solvents such .

Polyester Polyols: Synthesis and Characterization of .

Polyester Polyols: Synthesis and Characterization of .

tent. In the case of TPA-DEG polyols, this is achieved with TPA and DEG in about a 1:2 molar ratio and by targeting the monomer, 1,n 1. Free DEG remaining in such statistical polyol mix-tures acts as a liquidifier and helps to minimize the content of free carboxylic acid that is detri-mental to the reaction with isocyanate and foam formation.

Method for Making Poly(Butylene Oxide) Polyols - DOW .

Method for Making Poly(Butylene Oxide) Polyols - DOW .

Jul 28, 2016 · Polyether polyols produced in accordance with the invention are useful for making polyurethanes, among other things. Higher equivalent weight (500-3000 g/equivalent) polyether polyol products are useful in making elastomeric or semi-elastomeric polyurethanes, including noncellular or microcellular elastomers, and flexible polyurethane foams.

Method for Making Poly(Butylene Oxide) Polyols - DOW .

Method for Making Poly(Butylene Oxide) Polyols - DOW .

Jul 28, 2016 · Polyether polyols produced in accordance with the invention are useful for making polyurethanes, among other things. Higher equivalent weight (500-3000 g/equivalent) polyether polyol products are useful in making elastomeric or semi-elastomeric polyurethanes, including noncellular or microcellular elastomers, and flexible polyurethane foams.

Reactor For Making Pet Polyol/polyol Reaction Kettle - Buy .

Reactor For Making Pet Polyol/polyol Reaction Kettle - Buy .

Reactor For Making Pet Polyol/polyol Reaction Kettle, Find Complete Details about Reactor For Making Pet Polyol/polyol Reaction Kettle,Reactor For Making Polyol,Pet Polyol Reactor,Polyol Reaction Kettle from Reactors Supplier or Manufacturer .

Reactor Modeling and Recipe Optimization of Polyether .

Reactor Modeling and Recipe Optimization of Polyether .

Reactor Modeling and Recipe Optimization of Polyether Polyol Processes Spring 2013 EWO Meeting Yisu Nie 1Lorenz T. Biegler Carlos M. Villa2 John M. Wassick2 1Center for Advanced Process Decision-making Department of Chemical Engineering Carnegie Mellon University

China 200L Polyester Polyol Reactor Complete Plant - China .

China 200L Polyester Polyol Reactor Complete Plant - China .

China 200L Polyester Polyol Reactor Complete Plant, Find details about China Reactor for Polyester Polyol Resin, Reactor from 200L Polyester Polyol Reactor Complete Plant - Guangdong Jinzong Machinery Co., Ltd.

Carbon Dioxide-Based Polycarbonate Polyols for .

Carbon Dioxide-Based Polycarbonate Polyols for .

Nov 01, 2014 · However, low-molecular-weight CO 2-based polyols are a new development made possible by key advances in catalyst technology. Control of other reaction parameters can give CO 2-based polyols with a wide range of molecular weights and functionalities. The technology can even be used to make block copolymers. RHM Adhesives

How do we avoid bubbles during polyurethane casting?

How do we avoid bubbles during polyurethane casting?

The main problem is the reaction of Part A of PU with moisture in the air. The cans themselves are very large; the solution provided on the company FAQ page is to 'use the polymers as quickly as .

New polyester polyol derived from recycled poly (ethylene .

New polyester polyol derived from recycled poly (ethylene .

polyesterification reaction was carried out at 180-190 0C and was monitored with acid value. The reaction was stopped when the acid value of the reaction mixture reached below 20 mg KOH g-1. Polyester product was then cooled and stored. 2.4 Preparation of PE Polyol based coatings PE polyols were cured with different polyisocyanate curing agent.

How Polyurethane Is Made

How Polyurethane Is Made

Polyurethane chemistry is complex, but the basics are relatively easy to understand. Polyurethanes are formed by reacting a polyol (an alcohol with more than two reactive hydroxyl groups per molecule) with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives. Because a variety of diisocyanates and a wide range of polyols can be used to produce .

Polyols for Polyurethanes – Chemical production and .

Polyols for Polyurethanes – Chemical production and .

Polyester polyols. Polyester polyols for polyurethanes are prepared by the condensation reaction between glycols—such as ethylene glycols, propylene glycols, 1,4 butanediol, or 1,6 hexane diol—and a dicarboxylic acid. Polyesters are a class of polymers that allows for enormous variation of .

A VEGETABLE OIL BASED POLYOL AND A PROCESS TO MAKE THE .

A VEGETABLE OIL BASED POLYOL AND A PROCESS TO MAKE THE .

The first large scale commercial production of polyurethanes arose using polyester polyols from the ester condensation reaction of diols or polyols and dicarboxylic acids to make flexible foams. The polyester polyols were supplanted by polyether polyols because of lower cost and ability to make a wide range of polyols.

Chapter 10: Acrylic Polyols | Engineering360

Chapter 10: Acrylic Polyols | Engineering360

The general radical copolymerisation reaction for synthesis of acrylic polyols is shown in reaction 10.1. It is obligatory that one of the comonomers is a hydroxyalkyl acrylate or hydroxyalkyl methacrylate (mainly hydroxyethylacrylate and hydroxyethylmethacrylate) in order to introduce hydroxyl groups (as lateral groups, not as terminal groups) available for the reaction with -NCO groups of .

Systems and processes for producing polyether polyols

Systems and processes for producing polyether polyols

Post reactor 50 may comprise, for example, a tubular reactor, flow reactor, loop reactor, or, as is depicted in FIG. 1, a continuous stirred tank reactor (CSTR). The post reactor 50 provides additional residence time for reaction of any remaining oxides contained in the polyether polyol flowing out of continuous reactor 24.

Isocyanate Reactions

Isocyanate Reactions

The by far most important reaction, however, is step-growth polymerization of a diisocyanate with a polyol compound such as a polyester or polyether polyol which leads to the formation of urethane bonds. In the absence of a catalyst, the positively charged carbon of the isocyanate group (-N=C=O) is attacked by the nucleophilic oxygen of an .

what is the effect of polyol and diisocyanate mixing .

what is the effect of polyol and diisocyanate mixing .

The isocyante's contact with the polyol (and any water) starts the reaction. In very simple terms, the faster you expose the chemicals to each other, the quicker the reaction proceeds.

US20080262259A1 - Method for vegetable oil derived polyols .

US20080262259A1 - Method for vegetable oil derived polyols .

US20080262259A1 US12/082,808 US8280808A US2008262259A1 US 20080262259 A1 US20080262259 A1 US 20080262259A1 US 8280808 A US8280808 A US 8280808A US 2008262259 A1 US2008262259 A1 US 2008262259A1 Authority US United States Prior art keywords oil process weight percent natural polyols Prior art date 2007-04-18 Legal status (The legal status is an .

Polyol from castor oil and epoxy resin for PU Coatings

Polyol from castor oil and epoxy resin for PU Coatings

reaction From GPC average molecular weight of polyol was found to be 963, which was very well comparable to the end group analysis value (hydroxyl value 231, Molecular weight 972) and with the expected theoretical value (936). The results indicate that the reaction of epoxy resin with ricinoleic acid was complete. Chemical differences are .

Polyurethanes - What Goes Into PUs?

Polyurethanes - What Goes Into PUs?

Mar 26, 2001 · The polyester polyols are typically produced by the condensation reaction of a diol such as ethylene glycol with a dicarboxylic acid. Polyester polyols tend to be more expensive, are usually more viscous and difficult to handle but develop PUs with superior tensile, abrasion, flexing and oil resistance properties.

ISO/POLY REACTION

ISO/POLY REACTION

Dec 01, 2016 · Reaction with isocyanate and polyurethane. Solo Survival: How to Survive Alone in the Wilderness for 1 week --Eastern Woodlands - Duration: 34:07. Tom McElroy-Wild Survival Recommended for you

IMPACT™ Technology A Greener Polyether Process

IMPACT™ Technology A Greener Polyether Process

Formed by the Catalytic Reaction of a Starting Polyol with . Case Study: Channelview, Texas facility – one KOH reactor and one continuous reactor making similar products. Easy conversion of existing KOH reactor to provide low cost capacity increase while reducing process complexity.

China Dispersing Reactor for Paint Production - China .

China Dispersing Reactor for Paint Production - China .

China Dispersing Reactor for Paint Production, Find details about China Paint Dspersing Kettle, Reactor from Dispersing Reactor for Paint Production - Guangdong Jinzong Machinery Co., Ltd.

PROCESS FOR MAKING A POLYMER POLYOL - BASF SE

PROCESS FOR MAKING A POLYMER POLYOL - BASF SE

Feb 16, 2017 · 1. Continuous process for making a polymer polyol, comprising mixing at least one melted thermoplastic styrene-acrylonitrile-copolymer (TP) with at least one polyol (P) in the presence of at least one stabilizer (S), comprising from 10 to 70% by weight, based on the sum of all components, of at least one polyol P2, and of at least one polyol CSP which comprises the reaction product of at .

Reactor modeling and recipe optimization of polyether .

Reactor modeling and recipe optimization of polyether .

May 17, 2013 · The reactor modeling and recipe optimization of conventional semibatch polyether polyol processes, in particular for the polymerization of propylene oxide to make .

Polyether Polyols - an overview | ScienceDirect Topics

Polyether Polyols - an overview | ScienceDirect Topics

Rainer Höfer, in Industrial Biorefineries & White Biotechnology, 2015. 7.5 Sugar Polyols. Thanks to their high functionality polyhydric alcohols such as unmodified sucrose, molasses, or corn syrup 85 and sucrose-based polyether polyols play an important role for the production of rigid polyurethane foams. 86 The high functionality of the sucrose polyols enables the making of rigid .