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.

Date of Patent:
May. 24, 2011

Filed:

Oct. 05, 2006
Applicants:

John Richard Holland, Ormskirk, GB;

Karikath Sukumar Varma, Southport, GB;

David William Holden, Greater Manchester, GB;

Inventors:

John Richard Holland, Ormskirk, GB;

Karikath Sukumar Varma, Southport, GB;

David William Holden, Greater Manchester, GB;

Assignee:

Pilkington PLC, St. Helens, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Solutions comprising a sodium silicate waterglass having a modulus of less than 3 and at least 8% by weight of an organic polyhydroxy compound such as glycerol are useful in the production of interlayers used in fire resistant glass laminates. The solutions are dried on a flat surface such as glass to produce a clear intumescent interlayer having improved impact resistance. The dried interlayer may be removed from the surface in the form of an elastomeric material which may also be used as an interlayer in a fire resistant glazing.


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