Butyl polymer composition having improved cold flow properties

Details Butyl polymer composition having improved cold flow properties Butyl polymer composition having improved cold flow properties

2005-03-29

2005-03-29

Nutter, Nathan M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S203000, C525S213000, C525S214000, C525S215000, C525S232000, C525S241000

Reexamination Certificate

active

06872780

ABSTRACT:
A butyl polymer composition having improved cold flow properties is described. The composition comprises a butyl polymer (preferably a halogenated butyl polymer) and a styrene monomer. The styrene monomer is a copolymer of α-methylstyrene and another styrenic monomerer (e.g., styrene and vinyl toluene). Relative to the base butyl polymer, the cold flow properties of the butyl polymer composition are improved along with a number of other properties.

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