Patents Assigned to Ryvec, Inc.
  • Treated rubber and products made therefrom
    Patent number: 6896964
    Abstract: Treated rubber is made from ground rubber and a polyurethane resin. Products made by mixing treated rubber with additional polyurethane resin, molding and curing the polyurethane have higher tensile strengths and/or elongations than similar products made from untreated rubber. The method using treated rubber uses less polyurethane binder to produce products of equivalent strengths. The molding time is also reduced because of the reduced amount of polyurethane binder used.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: May 24, 2005
    Assignee: Ryvec, Inc.
    Inventor: Peter Kvesic
  • Recycled rubber products
    Patent number: 6821623
    Abstract: Recycled rubber products are made in a two step process. In the first step, ground rubber is treated with a polyurethane binder to make a treated rubber. In the second step, the treated rubber is mixed with additional polyurethane binder and molded into finished products. This method uses less polyurethane binder than the conventional process, but the products have higher tensile strengths. The molding time is also reduced because of the reduced amount of polyurethane binder used.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: November 23, 2004
    Assignee: Ryvec, Inc.
    Inventor: Peter Kvesic
  • Treated rubber and products made therefrom
    Publication number: 20030215637
    Abstract: Treated rubber is made from ground rubber and a polyurethane resin. Products made by mixing treated rubber with additional polyurethane resin, molding and curing the polyurethane have higher tensile strengths and/or elongations than similar products made from untreated rubber. The method using treated rubber uses less polyurethane binder to produce products of equivalent strengths. The molding time is also reduced because of the reduced amount of polyurethane binder used.
    Type: Application
    Filed: February 28, 2003
    Publication date: November 20, 2003
    Applicant: Ryvec, Inc., a California Corporation
    Inventor: Peter Kvesic