Hexamethylene diisocyanate-butyl

ABA ABS ABS-PC ABS-PVC ACM ACS AES AMMA AN APET APP ASA BR BS CA CAB CAP CN CP CPE CPET CPP CPVC CR CTA DAM DAP DMT ECTFE EEA EMA EMAA EMAC EMPP EnBA EP EPM ESI EVA(C) EVOH FEP HDI HDPE HIPS HMDI IPI LDPE LLDPE MBS Acrylonitrile-butadiene-acrylate Acrylonitrile-butadiene-styrene copolymer Acrylonitrile-butadiene-styrene-polycarbonate alloy Acrylonitrile-butadiene-styrene-poly(vinyl chloride) alloy Acrylic acid ester rubber Acrylonitrile-chlorinated pe-styrene Acrylonitrile-ethylene-propylene-styrene Acrylonitrile-methyl methacrylate Acrylonitrile Amorphous polyethylene terephthalate Atactic polypropylene Acrylic-styrene-acrylonitrile Butadiene rubber Butadiene styrene rubber Cellulose acetate Cellulose acetate-butyrate Cellulose acetate-propionate Cellulose nitrate Cellulose propionate Chlorinated polyethylene Crystalline polyethylene terephthalate Cast polypropylene Chlorinated polyvinyl chloride Chloroprene rubber Cellulose triacetate Diallyl maleate Diallyl phthalate Terephthalic acid, dimethyl ester Ethylene-chlorotrifluoroethylene copolymer Ethylene-ethyl acrylate Ethylene-methyl acrylate Ethylene methacrylic acid Ethylene-methyl acrylate copolymer Elastomer modified polypropylene Ethylene normal butyl acrylate Epoxy resin, also ethylene-propylene Ethylene-propylene rubber Ethylene-styrene copolymers Polyethylene-vinyl acetate Polyethylene-vinyl alcohol copolymers Fluorinated ethylene-propylene copolymers Hexamethylene diisocyanate High-density polyethylene High-impact polystyrene Diisocyanato dicyclohexylmethane Isophorone diisocyanate Low-density polyethylene Linear low-density polyethylene Methacrylate-butadiene-styrene... 

PVC can be blended with numerous other polymers to give it better processability and impact resistance. For the manufacture of food contact materials the following polymerizates and/or polymer mixtures from polymers manufactured from the above mentioned starting materials can be used Chlorinated polyolefins blends of styrene and graft copolymers and mixtures of polystyrene with polymerisate blends butadiene-acrylonitrile-copolymer blends (hard rubber) blends of ethylene and propylene, butylene, vinyl ester, and unsaturated aliphatic acids as well as salts and esters plasticizerfrec blends of methacrylic acid esters and acrylic acid esters with monofunctional saturated alcohols (Ci-C18) as well as blends of the esters of methacrylic acid butadiene and styrene as well as polymer blends of acrylic acid butyl ester and vinylpyrrolidone polyurethane manufactured from 1,6-hexamethylene diisocyanate, 1.4-butandiol and aliphatic polyesters from adipic acid and glycols. 

Figure 4. Comparison of viscosity changes on reaction between styrene-hydroxyethyl methacrylate copolymer (2.2 mole % HEMA) and butyl isocyanate ( ) and hexamethylene diisocyanate (O) in toluene at 80°C.

While activation energies have been published for many isocyanate/ alcohol reactions, relatively few reports have been made of the heat of reaction. Bayer [136] reported a heat of reaction of 52 kcal mole , or 26 kcal equiv", for the hexamethylene diisocyanate/1,4-butanediol reaction. Lovering and Laidler [137] measured heats of reactions for the butyl alcohol isomers with several aromatic isocyanates. Values ranged from 18.5 to 25 kcal equiv . ... 

Chem. Descrip. 1,6-Hexamethylene diisocyanate biuret in n-butyl acetate and xylene... 

Poly (melamine-co-formaldehyde), methylated. See Melamine-formaldehyde resin, methylated Poly (melamine-co-formaldehyde), methylated/butylated. See Melamine-formaldehyde resin, methylated-butylated Polymene AZ. See PEG castor oil Polymer C . See Polypropylene Polymer SBOCP. See Cocamidopropyl dimethylammonium C8-16 isoalkylsuccinyl lactoglobulin sulfonate Polymer Additive GH. See Polyoxyisobutylene/methylene urea copolymer Polymeric biuret of HDI Polymeric HDI Polymeric HMDI. See Hexamethylene diisocyanate biuret Polymeric MDI... 

The inductive effect of alkyl groups in alkyl isocyanates, such as -butyl isocyanate, stabilizes the silylurethane bonds. This improves thermal and hydrolytic resistance over aryl isocyanates. In this context, phenyl isocyanate reacts with sepiolite, giving large amounts of diphenyl urea, wha-eas butyl isocyanate gives stable grafted compounds, producing low amounts of secondary products (dibutyl urea) (101). Because diisocyanates (e.g., hexamethylene diisocyanate and 2,4-... 

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