LATEX AND LATEX ARTICLES FORMED FROM BRANCHED POLYMERS
Dipped formed latex articles with improved properties are formed from branched block copolymers, derived from alkenyl aromatic hydrocarbon-1,3-diene monomer system, and branched polyisoprene homopolymers, derived from isoprene. The polymers are obtained by polymerization in the presence of an anioni...
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| creator | TROMP, Maarten DE JONG, Wouter VAN DE WEG, Henk VAN DER HUIZEN, Adrie |
| description | Dipped formed latex articles with improved properties are formed from branched block copolymers, derived from alkenyl aromatic hydrocarbon-1,3-diene monomer system, and branched polyisoprene homopolymers, derived from isoprene. The polymers are obtained by polymerization in the presence of an anionic initiator; at a temperature from 0° C. to 100° C.; followed by coupling with a multifunctional coupling agent of formula (R1O)3Si-Y-Si(OR2)3, wherein R1 and R2 are independently C1-C6 alkyl groups; and Y is a C2-C8 alkylene group. The polymers are obtained as rubber cements having high solids content and low zero shear viscosities. The rubber cements are valuable for making latices and latex articles such as dipped goods, e.g., condoms, gloves, etc., with improved properties. |
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| subjects | ACCESSORIES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS OUTERWEAR PROTECTIVE GARMENTS THEIR PREPARATION OR CHEMICAL WORKING-UP WEARING APPAREL WORKING-UP |
| title | LATEX AND LATEX ARTICLES FORMED FROM BRANCHED POLYMERS |
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