Patent · US Expired

Processes for preparing (METH) acrylic polymers having functional groups at the chain ends

US6441101B1 · kind B1 · utility

5Cited by
3References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 15, 1999
Grant dateAug 27, 2002
Priority date—
Expiry dateSep 15, 2019

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F8/42
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

(Meth)acrylic polymers having alkenyl or curable silyl groups at the chain ends in high functionality ratios are prepared by a process which comprises (i) preparing a (meth)acrylic polymer having halogen atoms at the chain ends, using an organohalogenated compound or a halosulfonyl compound as an initiator and a metal complex catalyst wherein the central metal atom is selected from the group consisting of the elements of Groups 8, 9, 10 and 11 of the periodic table; and (ii) transforming the halogen atom into an alkenyl group- or a curable silyl group-containing substituent.The obtained (meth)acrylic polymers form homogeneous curing materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.