BLOCK COPOLYMERS OF SILICONES WITH VINYL PYRIDINE

  • US 3,673,272 A
  • Filed: 04/06/1970
  • Issued: 06/27/1972
  • Est. Priority Date: 04/06/1970
  • Status: Expired due to Term
First Claim
Patent Images

2. The block copolymer of claim 1 wherein a is 50 to 500, and b is from 10 to 500.

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