Patent · US Expired

Barrier sheet and method of manufacturing same

US4383876A · kind A · utility

0Cited by
10References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 24, 1981
Grant dateMay 17, 1983
Priority date
Expiry dateAug 24, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/269
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A barrier sheet suitable for use in the manufacture of cured rubber products, such as tires, belts or the like, is produced by a method which includes the steps of coating elongated reinforcement cords with uncured rubber, cutting the coated reinforcement cords to form short lengths, lubricating the short lengths to prevent balling and sheeting-out the fine particles to form a sheet of green barrier material. The barrier sheet formed by this method may be laid in to a tire during a tire building operation to form a tire reinforcement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.