Join
today

Boliven PRO is more than just patent search

  • Build and save lists using the powerful Lists feature
  • Analyze and download your search results
  • Share patent search results with your clients

Patents »

US6610781: Reinforced networked polymer/clay alloy composite

Share

Filing Information

Inventor(s) Zhihong Zhou · John Donald Payzant · Walter Van Woudenberg ·
Assignee(s) Alberta Research Council Inc. · Nilex, Inc. ·
Attorney/Agent(s) Kurt D. Van Tassel · Deborah G. VandenHoff · Van Tassel & Associates ·
Primary Examiner Helen L. Pezzuto ·
Application Number US9579701
Filing date 05/26/2000
Issue date 08/26/2003
Predicted expiration date 07/16/2019
U.S. Classifications 524/789  · 524/790  · 524/447  · 442/63  · 524/445  ·
International Classifications --
Kind CodeB1
International Classifications 524445 · 524447 · 524789 · 524790 · 442 63 ·
Related U.S. Application DataThis application is a continuation-in-part of U.S. patent application Ser. No. 09/356,278, filed in the name of Zhou et al on Jul. 16, 1999, now abandoned.
Foreign Priority CA2272828 - 05/26/1999 ·
57 Claims, 13 Drawings


Abstract

A reinforced networked polymer/clay alloy composite is produced by contacting a monomer/clay mixture with a reinforcing agent. The monomer/clay mixture comprises a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture, while the cross-linking agent concurrently acts to network oligomeric and polymeric species formed during polymerization to produce a networked polymer/clay alloy in the presence of the reinforcing agent. The networked polymer/clay alloy is intimately integrated with the reinforcing agent such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the composite.

Independent Claims | See all claims (57)

  1. 1. A process for producing a reinforced networked polymer/clay alloy composite, comprising the steps of: (a) preparing a monomer/clay mixture by mixing at least a monomer, clay particles, a cross-linking agent, and a mixing fluid in a vessel; (b) contacting the monomer/clay mixture and a reinforcing agent; (c) exposing the monomer/clay mixture to a polymerization initiator means; and (d) polymerizing the monomer/clay mixture in the presence of the reinforcing agent so that a reinforced networked polymer/clay alloy composite is formed.
  2. 22. A product produced by the process according to any one of the preceding claims.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US3949560 American Colloid Company Clem Apr 1976
US4018951 The Dow Chemical Company Gross Apr 1977
US4032701 American Colloid Company Hughes Jun 1977
US4048373 American Colloid Company Clem Sep 1977
US4103499 American Colloid Company Clem Aug 1978
US4139588 American Colloid Company Clem Feb 1979
US4178221 Rhone-Poulenc Industries Boutin et al. Dec 1979
US4283517 Milchem Incorporated Perricone et al. Aug 1981
US4295987 The Procter & Gamble Company Parks Oct 1981
US4418163 Kuraray Co., Ltd. Murakami et al. Nov 1983
US4467015 Clem Aug 1984
US4500670 The Dow Chemical Company McKinley et al. Feb 1985
US4565468 Crawford Jan 1986
US4731067 ARCO Chemical Company Le-Khac Mar 1988
US4735987 Osaka Yuki Kagaku Kogyo Kabushiki Kaisha Morita et al. Apr 1988
US4738867 Mitsubishi Petrochemical Company, Limited Itoh et al. Apr 1988
US4810573 American Colloid Company Harriet Mar 1989
US4867526 American Telephone and Telegraph Company, AT&T Bell Laboratories Arroyo Sep 1989
US4889885 Kabushiki Kaisha Toyota Chuo Kenkyusho Usuki et al. Dec 1989
US4892754 Mitsubishi Petrochemical Company Limited Itoh et al. Jan 1990
US4977192 Coatex S.A. Martineu et al. Dec 1990
US5145906 Hoechst Celanese Corporation Chambers et al. Sep 1992
US5174231 American Colloid Company White Dec 1992
US5185409 Diatec Environmental Sortwell Feb 1993
US5237945 American Colloid Company White Aug 1993
US5244934 Takai Rubber Industries, Ltd. Umeda et al. Sep 1993
US5352287 J. M. Huber Corporation Wason et al. Oct 1994
US5413747 Courtaulds Fibres (Holdings) Limited Akers et al. May 1995
US5462972 Nalco Chemical Company Smith et al. Oct 1995
US5489469 Kao Corporation Kobayashi et al. Feb 1996
US5578219 AMCOL International Corporation Kajita Nov 1996
US5580630 AMCOL International Corporation Byrd Dec 1996
US5584609 Claymax Corporation Clarey et al. Dec 1996
US5614269 Interface, Inc. Hoskins et al. Mar 1997
US5672633 Chemische Fabrik Stockhausen GmbH Brehm et al. Sep 1997
US5756159 Interface, Inc. Hoskins et al. May 1998
US5760121 AMCOL International Corporation Beall et al. Jun 1998
US5858535 The Procter & Gamble Company Wang et al. Jan 1999
US5877248 Amcol International Corporation Beall et al. Mar 1999
US5880197 AMCOL International Corporation Beall et al. Mar 1999
US5980996 Interface, Inc. Terry et al. Nov 1999

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
CA1310569NAUE FASERTECHNIKNov 1992
CN85102156Jan 1987
DE3912765MUELLER WERNEROct 1990
DE19531002BBZ INJ UND ABDICHTUNGSTECHNIKFeb 1997
EP0290814UNI-CHARM CORPORATIONNov 1988
EP0370646NIPPON SHOKUBAI CO., LTD.May 1990
EP0693508KOHJIN CO. Ltd.Jan 1996
JP62243606KAO CORPOct 1987
JP6328639*Feb 1988
JP63028639Feb 1988
WO199405863Mar 1994
WO199914288Mar 1999
* cited by examiner

Other Publications

Blumstein, A. “Polymerization of Adsorbed Monolayers I. Preparation of the Clay-Polymer Complex”
Blumstein, R. et al. “Polymerization of Monomolecular Layers adsorbed on Montmorillonite: Cyclization in Polyacrylonitrile and Polymethacrylonitrile”
Daniel, David E. “Geosynthetic Clay Liners, Part Two: Hydraulic Properties”
Kato, C. et al. “Preparation and Electrical Properties of Quaternary Ammonium Montmorillonite-Polystyrene Complexes”
Koerner, Robert M.
Nagae, H. et al. “Adsorption and Polymerisation of Acrylamide in Na-Montmorillonite and Na-Fluor-Tetrasilicic Mica”
Ogawa, M. et al. “Preparation of Montmorillonite-Polyacrylamide Interaction Compounds and the Water Absorbing Property”
Pramanik, P. “Nano Composites of Clay and Polymer”
Srikhirin, T. et al. “Polydiacetylene-Inorganic Clay Nanocomposites”
Well, Larry W. “Building a Better Barrier”

Patent Family

The current document is not in a family.