The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2001
Filed:
Jun. 01, 1993
Applicant:
Inventors:
Michael Schöps, Grossaitingen, DE;
Franz Kaulich, Bobingen, DE;
Bertrand Claude Weiter, Bobingen, DE;
Assignee:
Johns Manville International, Inc., Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 1/300 ; D04H 5/02 ; B32B 5/26 ;
U.S. Cl.
CPC ...
D04H 1/300 ; D04H 5/02 ; B32B 5/26 ;
Abstract
There are described a dimensionally stable laminate whose surfaces are formed by spunbonded webs and comprising at least two layers of spunbonded and at least one laid layer of reinforcing yarn, the laid layer or layers each being disposed between two layers of spunbonded and having a thread density of from 0.5 to 3 threads/cm, spunbonded and laid layers having been joined together by needling at about 20-70 stitches/cm,, a process for manufacturing this laminate, and its use for manufacturing roofing sheets and roof sealing sheets.