Acrylic polymer compounds

• US 5,798,426 A
• Filed: 08/13/1997
• Issued: 08/25/1998
• Est. Priority Date: 05/10/1996
• Status: Expired due to Fees

• Current Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: Anton, Waifong Liew, Spinelli, Harry Joseph, Patil, Anjali Abhimanyu
• Primary Examiner(s): Schofer, Joseph L.
• Assistant Examiner(s): SAROFIM, NABIL F
• Application Number:
  US08/915,542
• Time in Patent Office: 377 Days
• Field of Search: 526/318.41
• US Class Current: 526/318.41
• CPC Class Codes: C08F 220/12 of monohydric alcohols or phenols
• CPC Class Codes: C08F 220/283 and containing one or more carboxylic moiety in the chain, e.g. acetoacetoxyethyl(meth)acrylate
• CPC Class Codes: C09D 133/064 containing anhydride, COOH or COOM groups, with M being metal or onium-cation
• CPC Class Codes: C09J 133/064 containing anhydride, COOH or COOM groups, with M being metal or onium-cation

Abstract

An acrylic polymer of polymerized monomers of about 55-80% by weight of an alkyl methacrylate having 1-12 carbon atoms in the alkyl group, and alkyl acrylate having 1-12 carbon atoms in the alkyl group, substituted or unsubstituted aryl methacrylate or acrylate, substituted or unsubstituted alicyclic methacrylate or acrylate, substituted or unsubstituted cyclic methacrylate or acrylate, a polymerizable vinyl aromatic monomer, vinyl pyrrolidone or any mixtures of the above monomers, and contains about 5-40% by weight of acetoacetoxy ethyl methacrylate and about 5-15% by weight of ethylenically unsaturated acid and the acrylic polymer has a weight average molecular weight of about 10,000-3,000,000 and a glass transition temperature of about -20° to 50° C.

Claims