Preparation of butadiene-based impact modifiers

Details Preparation of butadiene-based impact modifiers Preparation of butadiene-based impact modifiers

1995-11-16

1997-02-04

Zitomer, Fred

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524575, 525243, 525244, 525246, 525310, 525902, 526 78, 526 79, 526 86, 526 87, 5263291, 526340, 5263401, 526347, 526909, 526911, C08F25510, C08F25508, C08F25702

Patent

active

055998542

ABSTRACT:
An improved process for preparing core/shell MBS modifiers is disclosed, wherein by adding feeds of the monomers which form the second and/or third stage polymers prior to completion of polymerization of the earlier stages, a process with substantially reduced polymerization time results with no loss in properties of the product. The process further includes agglomeration of the rubbery polymer to increase particle size during the polymerization process.

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189005 Dec. 20, 1979 Research Disclosure.

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