• Patent Title: Processes for preparing (meth) acrylic polymers having functional groups at the chain ends
  • Application No.: US10142877
    Application Date: 2002-05-13
  • Publication No.: US06667369B2
    Publication Date: 2003-12-23
  • Inventor: Masato KusakabeKenichi Kitano
  • Applicant: Masato KusakabeKenichi Kitano
  • Priority: JP8-022233 19960208; JP8-326475 19961206
  • Main IPC: C08L3304
  • IPC: C08L3304
Processes for preparing (meth) acrylic polymers having functional groups at the chain ends
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.
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