Latex and latex articles formed from branched polymers

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United States of America

PATENT NO 12043714
SERIAL NO

17292872

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
CARIFLEX PTE LTD6 SHENTON WAY #25-11 OUE DOWNTOWN SINGAPORE 068809

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Jong Wouter Amsterdam, NL 14 60
Tromp, Maarten Amsterdam, NL 4 9
Van, De Weg Henk Amsterdam, NL 4 2
Van, Der Huizen Adrie Amsterdam, NL 3 2

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