Reinforcing threads and composites resistant to corrosive media

Details Reinforcing threads and composites resistant to corrosive media Reinforcing threads and composites resistant to corrosive media

2007-10-02

2007-10-02

Gray, Jill (Department: 1774)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

C428S375000, C428S378000, C428S392000, C252S008810, C252S008830, C523S214000, C523S216000, C523S217000

Reexamination Certificate

active

10506674

ABSTRACT:
The present invention relates to reinforcement yarns coated with a sizing composition comprising at least one silane satisfying the formula:in-line-formulae description="In-line Formulae" end="lead"?Si(R1)(R2)(R3)(R4)in-line-formulae description="In-line Formulae" end="tail"?in which:R1, R2and R3are chosen from the following atoms or groups:—H (except in the case of R3), —Cl, —O—R5, —O—R6—O—R5, —O—(C═O)—R5, —O—R6—(C═O)—R5, R5and R6being chosen from hydrocarbon radicals whose main chain has from 1 to 4 carbon atoms;R4═—R7—NHR8R7being chosen from branched hydrocarbon radicals whose main chain has from 2 to 6 carbon atoms, R8being chosen from the following groups:—H, —R9—NH2, —R10—NH—R9—NH2, R9being chosen from hydrocarbon radicals containing 1 to 12 carbon atoms or from carbonyls, and R10being chosen from hydrocarbon radicals whose main chain has from 1 to 6 carbon atoms.The glass yarns according to the invention are particularly suitable for reinforcing organic materials, the yarns and composites obtained resisting in a corrosive medium.

REFERENCES:
patent: 3350345 (1967-10-01), Clayton et al.
patent: 3823103 (1974-07-01), Harding
patent: 4247436 (1981-01-01), Roedder et al.
patent: 4524000 (1985-06-01), Dixon et al.
patent: 5109057 (1992-04-01), Ito et al.
patent: 5736246 (1998-04-01), Augier et al.
patent: 2 178 704 (1973-11-01), None
patent: 01 90017 (2001-11-01), None

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