Processes for preparing telechelic, branched and star thermoplas

Details Processes for preparing telechelic, branched and star thermoplas Processes for preparing telechelic, branched and star thermoplas

1996-06-17

1998-03-03

Berman, Susan W.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 60, 522 62, 522 57, 522149, 522904, 522175, 522182, 522188, 522 63, 522 65, 522 36, 525 88, 525 95, 525901, 525941, 526328, 5263285, 526329, 5263292, C08F 250, C08F25702, C08F26506, C08F28700

Patent

active

057235112

ABSTRACT:
A process for the preparation of branched thermoplastic resins comprising: heating a mixture of a free radical initiator, at least one first free radical reactive monomer, at least one free radical reactive branching agent compound, and at least one stable free radical agent, to produce a linear or unbranched polymer product with a free radical initator fragment at one end and a covalently bonded stable free radical agent at the other end of the polymerized chain of monomers; and irradiating the unbranched polymer product in the presence of a reactive compound selected from the group consisting of a free radical reactive monomer, a branching agent compound, and mixtures thereof to form a branched polymeric product.

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patent: 5473031 (1995-12-01), Tinetti et al.
patent: 5552502 (1996-09-01), Odell et al.

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