Silicone polyester resins

Details Silicone polyester resins Silicone polyester resins

2008-03-18

2008-03-18

Woodward, Michael (Department: 1615)

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Polymer containing

C556S437000, C556S441000

Reexamination Certificate

active

10989822

ABSTRACT:
The present invention relates to a series of novel silicone polyesters which are prepared by crosslinking a dimethicone copolyol having at least 4 hydroxyl groups with a dimer acid. The ratio of acid groups to hydroxyl groups ranges from 0.7 to 1.4 so that a significant number of groups are reacted and a significant number of crosslink groups are achieved.

REFERENCES:
patent: 4724248 (1988-02-01), Dexter et al.
patent: 5136063 (1992-08-01), O'Lenick, Jr.
patent: 5210133 (1993-05-01), O'Lenick, Jr.
patent: 5411729 (1995-05-01), O'Lenick, Jr.
patent: 5475125 (1995-12-01), O'Lenick, Jr.
patent: 6972123 (2005-12-01), O'Lenick, Jr.

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