An aqueous coating composition comprising an aqueous dispersion of polyurethane and a siloxane-based polyamide.

A heat stable siloxane-imide copolymer and a curable silicone adhesive composition comprising such a siloxane-imide copolymer is shown and described herein. The composition includes an alkenyl silicone, a silicone hydride based cross linker, hydrosilylation catalyst and additives that is curable at relatively low temperatures and shows good heat stability.

A condensation curable silicone adhesive composition comprising a siloxane-imide base polymer, condensation curable organopolysiloxane crosslinker, a condensation catalyst and an additive is shown and described herein. The composition is curable at relatively room temperatures and shows good heat stability.

A condensation curable silicone adhesive composition comprising a siloxane-imide base polymer, condensation curable organopolysiloxane crosslinker, a condensation catalyst and an additive is shown and described herein. The composition is curable at relatively room temperatures and shows good heat stability.

The present invention relates to a polymer comprising a repeating group having the structure of formula (I)

##STR00001##

wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.

The present invention relates to a polymer comprising a repeating group having the structure of formula (I)

##STR00001##

wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.

The invention provides a contact lens manufacturing method for cast-molding of silicone hydrogel contact lenses having enhanced oxygen permeability without adversely affecting desirable lens mechanical properties (e.g., modulus). A method of the invention comprises adding a small amount of a radical scavenger (e.g., H-TEMPO) in a polymerizable composition for cast-molding of SiHy contact lenses) to provide the resultant polymerizable composition with a bi-phase curing profile at a curing temperature of from about 45° C. to about 100° C. With such a bi-phase curing profile, the resultant polymerizable composition can be thermally cured at the curing temperature to form a SiHy contact lens having an oxygen permeability higher than that for a polymerizable composition having the substantially identical composition excepting being free of any radical scavenger.

Organopolysiloxane copolymers having the formula

##STR00001##

are useful in treating fibrous substances, particularly textile fabrics, to produce a laundering-resistant soft hand.

The present invention relates to a polymer comprising a repeating group having the structure of formula (I) ##STR00001##
wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.

The present invention relates to a polymer comprising a repeating group having the structure of formula (I) ##STR00001##
wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.