The invention provides aqueous coating composition having freeze thaw stability, comprising: (a) at least one latex polymer derived from at least one monomer and at least one reactive surfactant of the formula
R.sub.1O(CH.sub.2CHR.sub.2O).sub.x(CH.sub.2CH.sub.2O).sub.y(CH.sub.2CHR.sub.3O).sub.zR.sub.4
where R.sub.1 is either alkyl, aryl, alkylaryl, or aralkylaryl of 8-30 carbon atoms, R.sub.2 is CH.sub.2OCH.sub.2CHCH.sub.2 (AGE); R.sub.3 is either H, CH.sub.3, or CH.sub.2CH.sub.3; R.sub.4 is H or SO3M or PO3M where M is H or K, Na, NH.sub.4, NR.sub.4, alkanolamine, or other cationic species and x=2-100; y=4-200 and z=0-50.

The invention provides aqueous coating composition having freeze thaw stability, comprising: (a) at least one latex polymer derived from at least one monomer and at least one reactive surfactant of the formula
R.sub.1O(CH.sub.2CHR.sub.2O).sub.x(CH.sub.2CH.sub.2O).sub.y(CH.sub.2CHR.sub.3O).sub.zR.sub.4
where R.sub.1 is either alkyl, aryl, alkylaryl, or aralkylaryl of 8-30 carbon atoms, R.sub.2 is CH.sub.2OCH.sub.2CHCH.sub.2 (AGE); R.sub.3 is either H, CH.sub.3, or CH.sub.2CH.sub.3; R.sub.4 is H or SO3M or PO3M where M is H or K, Na, NH.sub.4, NR.sub.4, alkanolamine, or other cationic species and x=2-100; y=4-200 and z=0-50.

A polymer compound selected from a homopolymer of (a) and a block copolymer of (b). (a) A homopolymer comprising a polyether segment having a side chain including a primary amine. (b) A block copolymer of a polyether segment having a side chain including a primary amine, and a poly(ethylene glycol) chain.

An aqueous alkyd resin coating composition, comprising (a) at least one alkyd resin as a dispersed phase; (b) an emulsifier based on styrenated phenols that have been converted into reactive surfactants by first reaction with one or more equivalents of an allyl glycidyl ether to provide pendant allyl groups and then oxyalkylated and (c) water. The invention also provides a method for preparing these aqueous alkyd resin coating compositions from solvent borne alkyd compositions.

An aqueous alkyd resin coating composition, comprising (a) at least one alkyd resin as a dispersed phase; (b) an emulsifier based on styrenated phenols that have been converted into reactive surfactants by first reaction with one or more equivalents of an allyl glycidyl ether to provide pendant allyl groups and then oxyalkylated and (c) water. The invention also provides a method for preparing these aqueous alkyd resin coating compositions from solvent borne alkyd compositions.

In various embodiments, the present invention is directed to a centrally-functionalizable living cationic polymer or copolymer having a centrally-substituted tetraene group having the formula ##STR00001##
wherein each R is selected from the group consisting of a polymer or a copolymer, such as a polyisobutylene polymer or a poly(isobutylene-b-styrene) copolymer.

In various embodiments, the present invention is directed to a centrally-functionalizable living cationic polymer or copolymer having a centrally-substituted tetraene group having the formula ##STR00001##
wherein each R is selected from the group consisting of a polymer or a copolymer, such as a polyisobutylene polymer or a poly(isobutylene-b-styrene) copolymer.

An epichlorohydrin rubber composition that includes 100 parts by weight of an epichlorohydrin-ethylene oxide-allyl glycidyl ether terpolymer rubber, 0 to 60 parts by weight of carbon black, and 30 to 60 parts by weight of a flat tiller. The crosslinked epichlorohydrin rubber is prepared by crosslinking the composition with a crosslinking agent. Materials for accumulators contain the crosslinked rubber.

[Problems to be Solved]

The present invention provides a polysiloxane monomer which gives an ophthalmic device with excellent wettability and a method for preparing the same.

[Means to Solve the Problems]

The present invention provides a compound represented by the formula (1) which has a linear polysiloxane structure at the end, a polymerizable group at the other end, and a polyether group or a hydrophilic group as a side chain bounded to a linking group which is represented by -(L.sup.1).sub.a-CH-L.sup.2- in the formula (1) and exists between the polysiloxane structure and the terminal polymerizable group. The compound has excellent compatibility with a hydrophilic monomer, and the surface wettability of hydrogel obtained from the compound as a monomer is improved. The present invention further provides a method for preparing the polysiloxane monomer compound, a polymer having a repeating unit derived from the polymerization at the (meth)acryl group of the polysiloxane monomer compound, and an ophthalmic device containing the polymer.

[Problems to be Solved]

The present invention provides a polysiloxane monomer which gives an ophthalmic device with excellent wettability and a method for preparing the same.

[Means to Solve the Problems]

The present invention provides a compound represented by the formula (1) which has a linear polysiloxane structure at the end, a polymerizable group at the other end, and a polyether group or a hydrophilic group as a side chain bounded to a linking group which is represented by -(L.sup.1).sub.a-CH-L.sup.2- in the formula (1) and exists between the polysiloxane structure and the terminal polymerizable group. The compound has excellent compatibility with a hydrophilic monomer, and the surface wettability of hydrogel obtained from the compound as a monomer is improved. The present invention further provides a method for preparing the polysiloxane monomer compound, a polymer having a repeating unit derived from the polymerization at the (meth)acryl group of the polysiloxane monomer compound, and an ophthalmic device containing the polymer.