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AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsJohn J. Tsai, Patrick G. Jobe, Robert L. Billmers, Rama S. Chandran, Paul R. Mudge, Michael T. Sarkis
Estimating the term…
Various novel acetal- and aldehyde-containing monomers are prepared. They can be polymerized and copolymerized by conventional polymerization techniques. The polymers contain repeating units derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group and optionally one or more repeating units derived from ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer such as ethylene, vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, methyl methacrylate or acrylic acid. Aqueous emulsions of polymers containing the acetal-containing monomers and a hydroxy-containing monomer are useful as binders for nonwoven fabrics.
An acetal-containing monomer selected from the group consisting of (3,3-dimethoxy-2,2-dimethyl)propyl crotonate, (3,3-dimethoxy-2,2-dimethyl)propyl fumarate, (3,3-dimethoxy-2,2-dimethyl)propyl maleate, (3,3-dimethoxy-2,2-dimethyl)propyl itaconate, bis(3,3-dimethoxy-2,2-dimethyl)propyl fumarate, bis(3,3-dimethoxy-2,2-dimethyl)propyl maleate, and bis(3,3-dimethoxy-2,2-dimethyl) propyl itaconate.
A polymer comprising an ethylenically unsaturated monomer and an acetal-containing monomer selected from the group consisting of (3,3-dimethoxy-2,2-dimethyl)propyl crotonate;
A monomer containing aromatic acetal groups selected from the group consisting of [5-(dimethoxymethyl)furfur-2-yl]methyl acrylate, 5-(N,N-di-[n-propyl-1-en-3-yl]aminomethyl)-2-dimethoxymethyl furan, 5-(n-propyl-1-en-3-oxymethyl)-2-dimethoxymethyl furan, and 5-(n-propyl-1-en-3-aminomethyl)-2-dimethoxymethyl furan.
A monomer containing aromatic acetal groups which is selected from the group consisting of 2-(2-dimethoxymethyl-phenoxy)ethyl acrylate, 2-(2-(2-(1,3-dioxalano)phenoxy)ethyl acrylate, 2-hydroxy-3-(4-dimethoxymethylphenoxy)propyl methacrylate, and 2-hydroxyl-3-(2-dimethoxymethyl-phenoxy)propyl methacrylate.
Dependencies are inferred from the claim text.