Silicone protein polymers

Details Silicone protein polymers Silicone protein polymers

1992-03-16

1993-09-07

Russel, Jeffrey E.

Chemistry: natural resins or derivatives; peptides or proteins;

Proteins, i.e., more than 100 amino acid residues

Plant proteins, e.g., derived from legumes, algae or...

525 541, 528 33, 530378, 530410, 530816, 556450, C07K 308, C07K 1510, C07K 1700

Patent

active

052430286

ABSTRACT:
The present invention relates to a series of novel silicone proteins which are high substantive to fiber and hair. They are cationic materials which contain an ester linkage. A chloroester of a dimethicone copolyol is reacted with the amino group of a protein or amino acid. The compounds contain both a silicone portion and protein portion in a covalent bone one molecule. Since the compounds of the present invention are high molecular weight silicone polymers, they have a high degree of oxidative stability, even at elevated temperatures and are nonirritating to skin and eyes. The proteins of the present invention plate out on and form a film on the surface of hair skin and textile fibers. In addition, these compounds are non volatile and exhibit a inverse cloud point. These combination of properties makes these polymers ideally suited for use in personal care applications.

REFERENCES:
patent: 4725645 (1988-02-01), Anteunis et al.
patent: 4929670 (1990-05-01), Billmers et al.
patent: 5070171 (1991-12-01), O'Lenick, Jr.
patent: 5100956 (1992-03-01), O'Lenick, Jr.
patent: 5210133 (1993-05-01), O'Lenick, Jr.

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