U.S. patents available from 1976 to present.
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Production of highly concentrated adhesive dispersions and their use

Patent 6225401 Issued on May 1, 2001. Estimated Expiration Date: Icon_subject February 22, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Copolymers for pressure-sensitive adhesives based on acrylic esters, (meth)acrylamide vinyl acetate and ethylene
Patent #: 4322516
Issued on: 03/30/1982
Inventor: Wiest ,   et al.

Process for the production of synthetic rubber latices, their use as a starting material in the production of pressure-sensitive adhesives and pressure-sensitive adhesives
Patent #: 4445959
Issued on: 05/01/1984
Inventor: Hombach ,   et al.

Pressure sensitive adhesives with improved shear resistance
Patent #: 4507429
Issued on: 03/26/1985
Inventor: Lenney

Novel adhesive dispersions
Patent #: 4997879
Issued on: 03/05/1991
Inventor: Weissgerber, et al.

Pressure sensitive adhesives comprising tackified aqueous vinyl acetate/ethylene/acrylate copolymer dispersions
Patent #: 5242963
Issued on: 09/07/1993
Inventor: Mao

5298554

Inventors

Assignee

Application

No. 147707 filed on 02/22/1999

US Classes:

524/800, Preparation of intentional or desired composition by formation of solid polymer or SICP in the presence of water as a designated nonreactant material (DNRM), or products thereof524/215, With water NRM524/272, Solid polymer derived from at least one ethylenic compound containing a carboxylic acid or derivative524/823, Two or more monomers-containing carboxylic acid or derivative526/80, Polymerizing in the presence of water526/142, Non-metal material is organic oxygen-containing compound526/307, Non-amide nitrogen containing526/319From carboxylic acid ester monomer

Examiners

Primary: Wu, David W.
Assistant: Zalukaeva, Tatyana

Attorney, Agent or Firm

Foreign Patent References

  • 12 48 943 DE. 07/24/1965
  • 40 20 767 DE. 06/24/1990

International Class

C08F 002/16

Foreign Application Priority Data

1996-08-22 DE

Abstract

Readily filterable and deodorizable aqueous dispersions of pressure-sensitive adhesive, especially for self-adhesive labels, having solids contents of more than 65%, can be prepared with readily reproducible properties by copolymerizing esters of acrylic and/or methacrylic acid in the presence of less than 50 ppm of inhibitor and, preferably, in the presence of from 0.01 to 5% by weight of reducing agent by a special emulsion technique. The highly concentrated pressure-sensitive adhesive dispersion, subsequently deodorized with steam, is free from coagulum and seediness.

Other References

  • T.G. Fox, Bull. Am. Phys. Soc., (Ser.II), No. 1, p. 123, J5 "Influence of Diluent and of Copolymer Composition on the Glass Temperature of a Polymer System.", 1956
  • J. Brandrup, et al., Polymer Handbook, 2nd ed., 2 pages "Table of Contents", 1995
  • H. Fickentscher, Cellulose Chemie, vol. 13, 1 page, 1932 (abstract only of pp. 56-64, 71 and 74
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