Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2000-07-25
2002-07-09
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C524S492000, C524S413000, C524S394000, C524S445000, C524S495000, C524S366000, C524S450000, C152S209100, C525S331900, C525S333100, C525S333200, C525S331800, C525S332500
Reexamination Certificate
active
06417286
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a compound which is useful in rubber compositions and the processing of a sulfur curable rubber compositions.
BACKGROUND OF THE INVENTION
Sulfur containing organosilicon compounds are useful as reactive coupling agents between rubber and silica fillers providing for improved physical properties. They are also useful as adhesion primers for glass, metals and other substrates.
U.S. Pat. Nos. 3,842,111, 3,873,489 and 3,978,103 disclose the preparation of various sulfur containing organosilicon compounds. These organosilicon compounds are prepared by reacting
(a) 2 moles of a compound of the formula
Z—Alk—hal
where hal is a chlorine, bromine or iodine; Z is
where R
1
is an alkyl of 1 to 4 carbon atoms or phenyl and R
2
is alkoxy of 1 to 8 carbon atoms; or cycloalkoxy of 5 to 8 carbon atoms; or alkylmercapto with 1 to 8 carbon atoms; Alk is a divalent aliphatic hydrocarbon or unsaturated hydrocarbon or a cyclic hydrocarbon containing 1 to 18 carbon atoms; with
(b) 1 mole of a compound of the formula
Me
2
S
n
where Me is ammonium or a metal atom and n is a whole number from 2 to 6.
U.S. Pat. No. 4,623,738 relates to neoalkoxy compounds of the formula
wherein M is titanium or zirconium, R, R
1
and R
2
are each monovalent hydrocarbons or a halogen or ether substituted derivative thereof; R
2
may also be an oxy derivative or an ether substituted oxy derivative of said groups; A, B and C are each monovalent aroxy, thioaroxy, diester phosphate, diester pyrophosphate, oxyalkylamino, sulfonyl or carboxyl containing up to 30 carbon atoms; and a+b+c equals 3. These neoalkoxy compounds are disclosed as coupling agents.
SUMMARY OF THE INVENTION
The present invention relates to titanium and zirconium compounds and their use in rubber.
REFERENCES:
patent: 4087402 (1978-05-01), Monte et al.
patent: 4094853 (1978-06-01), Monte et al.
patent: 4098758 (1978-07-01), Monte et al.
patent: 4332844 (1982-06-01), Hamada et al.
patent: 4600789 (1986-07-01), Sugerman et al.
patent: 4623738 (1986-11-01), Sugerman et al.
patent: 5094769 (1992-03-01), Anderson et al.
patent: 5280098 (1994-01-01), Witucki et al.
patent: 6037418 (2000-03-01), Mukai et al.
patent: 6048943 (2000-04-01), Blok et al.
patent: 3620978 (1987-01-01), None
patent: 903132 (1962-08-01), None
patent: 57-44681 (1982-03-01), None
patent: 58-29139 (1983-02-01), None
Great Britain Search Report.
Agostini Giorgio
Corigliano Mario
Frank Uwe Ernst
Hendricks Bruce J.
Lee Rip A.
The Goodyear Tire & Rubber Company
Wu David W.
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