Abstract Preparation of inherently colloidally stable polymer latexes by the continuous, addition polymerization in aqueous dispersion of a copolymerizable monomeric mixture of specified amounts of (1) an essentially hydrophobic ethylenically unsaturated monomer, such as vinylidene chloride, (2) a second, relatively more hydrophilic ethylenically unsaturated monomer having a solubility of at least 1 weight percent in both the water and oil phase of the aqueous dispersion and (3) a significantly water soluble ionic material which is copolymerizable with (2) and which has an onium functionality; and improved substantially water-insoluble substrates having a coating of the dried residue of such aqueous dispersion thereon.
from about 2.0 to 30 weight percent based on the weight of (1) and (2) of a second relatively more hydrophiLic ethylenically unsaturated comonomer which has a solubility in both the water and the oil phase of said aqueous dispersion of at least 1 weight percent at the temperature of polymerization; and
Claim 2
Dependent Claim
16 words
The coated product of claim 1 wherein (1) of the polymer latex is predominantly vinylidene chloride.
Claim 3
Dependent Claim
20 words
The coated product of claim 1 wherein (1) of the polymer latex is predominantly vinylidene chloride and (2) is acrylonitrile.
Claim 4
Dependent Claim
101 words
from 0.5 to about 5 weight percent based on the total weight of monomer used of a significantly water-soluble ionic material which is copolymerizable with (2) which material is selected from the group of onium salts having the formula: R-Z-Q-ON A wherein the radical R is selected from the group consisting of vinyl and Alpha -substituted vinyl; the symbol Z represents a difunctional linking group which will activate the double bond present in said vinyl group; -Q- is a divalent hydrocarbon having its valence bonds on different carbon atoms; ON is an onium ion and the symbol A represents an anion.
Claim 5
Dependent Claim
26 words
The coated product of claim 1 wherein (1) of the polymer latex is predominantly vinylidene chloride, (2) is acrylonitrile and (3) is 3-trimethylamino, 2-hydroxy propyl methacrylate.