US 8,999,505 B2 · Sizing composition in the form of a physical gel for glass strands, glass strands obtained and composites comprising the said strands

Abstract

The present invention relates to a sizing composition in the form of a physical gel for glass strands which contains 0.1 to 5% by weight of at least one texturing agent chosen from xanthans, guars and succinoglycans, 2 to 8% by weight of at least one film-forming agent, 0.1 to 8% by weight of at least one compound chosen from plasticizing agents, surface-active agents and dispersing agents, 0.1 to 4% by weight of at least one coupling agent, and 0 to 6% by weight of at least one additive. Another subject-matter of the present invention is glass strands coated with the abovementioned sizing composition and the composite materials containing an organic or inorganic material reinforced with the said glass strands.

Claims15

Dependent claims

A glass strand coated with a sizing composition consisting of, by weight percent:

from 0.1 to 5% of at least one succinoglycan as a texturing agent;
from 2 to 8% of at least one epoxy compound as a film-forming agent;
from 0.1 to 8% of at least one compound selected from the group consisting of a plasticizing agent, a surface-active agent, and a dispersing agent;
from 0.1 to 4% of at least one coupling agent;
and
from 0 to 6% of at least one additive,
wherein the amount of size represents from 0.2 to 5% by weight of a final strand.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/676,612Filed 4 Sep 2008

Priority

FR 07 573776 Sep 2007

Published

US 2011/0033702 A110 Feb 2011

Granted

7 Apr 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

C03C 25/26
Coatings containing organic materials: macromolecular compounds or prepolymers
Y10T 428/249944
Fibers are aligned substantially parallel: fiber is precoated
Y10T 428/249948
Fiber embedded in or on the surface of a polymeric matrix: fiber is precoated
Y10T 428/2933
Rod, strand, filament or fiber: coated or with bond, impregnation or core

Sizing composition in the form of a physical gel for glass strands, glass strands obtained and composites comprising the said strands

Life of this patent

Sizing composition in the form of a physical gel for glass strands, glass strands obtained and composites comprising the said strands

Life of this patent

Abstract

Claims15