US4297145A
Expired / Lapsed
US
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Silane/filler preparations, process for their production and their use
Assignee: Evonik Operations GmbH
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Filing: 1980-08-14
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Granted: 1981-10-27
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Expires: 2000-08-14
Abstract
Abstract The invention relates to a silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula X.sub.p --C.sub.m H.sub.2m+1-p SiR.sub.n.sup.1 (OR).sub.3-n, I in which X=a halogen atom, preferably chlorine or bromine, p=1 or 2, m=1 to 5, R 1 =a C 1 -C 5 alkyl group, C 5 -C 8 -cycloalkyl group or a phenyl group, R=a C 1 -C 5 -alkyl group, a C 5 -C 8 -cycloalkyl group, a phenyl group, a benzyl group or a C 1 -C 5 -alkoxy-C 1 -C 5 -alkyl group, and n=0, 1 or 2, and--respectively balanced to 100%--from 95 to 30% by weight of at lesat one inorganic filler, preferably carbon black and silicate fillers as, e.g., silica. There is also disclosed a process for the production of the silane/filler preparation and its use in optionally cross-linkable polymeric moulding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable moulding compositions based on natural rubber and/or synthetic rubber.
Inventors
- 👤 Siegfried Wolff
- 👤 Lothar Rothbuhr
- 👤 Heinz Grewatta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:26
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C04; C04B; C04B20/00; C04B20/10; C04B20/1051
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
128 words
A silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula X.sub.p --C.sub.m H.sub.2m+1-p SiR.sub.n.sup.1 (OR).sub.3-n, I in which X=a halogen atom p=1 or 2, m=1 to 5, R 1 =a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group or the phenyl group, R=a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group, the phenyl group, the benzyl group or a C 1 - to C 5 -alkoxy-C 1 - to C 5 -alkyl group, and n=0, 1 or 2, and--respectively balanced to 100%--from 95 to 30% by weight of at least one inorganic filler based on the two components.
Claim 2
Dependent Claim
128 words
A silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula X.sub.p --C.sub.m H.sub.2m+1-p SiR.sub.n.sup.1 (OR).sub.3-n, I in which X=a halogen atom p=1 or 2, m=1 to 5, R 1 =a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group or the phenyl group, R=a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group, the phenyl group, the benzyl group or a C 1 - to C 5 -alkoxy-C 1 - to C 5 -alkyl group, and n=0, 1 or 2, and--respectively balanced to 100%--from 95 to 30% by weight of at least one inorganic filler based on the two components.
Claim 3
Dependent Claim
36 words
A silane/filler preparation as claimed in claim 1 where R is a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group, a phenyl group or a benzyl group.
Claim 4
Dependent Claim
13 words
A silane/filler preparation as in claim 2 wherein X is chlorine or bromine.
Claim 5
Dependent Claim
17 words
A silane/filler preparation as in claim 3 wherein the filler is carbon black or a silicate filler.
Claim 6
Dependent Claim
15 words
A silane/filler preparation as claimed in claim 4 wherein the inorganic filler is carbon black.
Claim 7
Dependent Claim
41 words
A silane/filler preparation as claimed in claim 5 wherein the carbon black is a furnace black having a specific surface area of from 30 to 140 m 2 /g and a mean primary particle size of from 20 to 60 nm.
Claim 8
Dependent Claim
24 words
A silane/filler preparation as claimed in claim 4 wherein the inorganic filler is a silica filler produced pyrogenically or by precipitation in aqueous medium.
Claim 9
Dependent Claim
41 words
A silane/filler preparation as claimed in claim 7 wherein the silica filler is a silica filler having a specific surface area of from 100 to 250 m 2 /g and a mean primary particle size of from 10 to 400 nm.
Claim 10
Dependent Claim
23 words
A silane/filler preparation as claimed in claim 7 wherein the silica filler is one which has been hydrophobised with at least one silane.
Claim 11
Dependent Claim
23 words
A silane/filler preparation as claimed in claim 3 wherein the inorganic filler is a natural light filler suitable for use in rubber technology.
Claim 12
Dependent Claim
22 words
A silane/filler preparation as claimed in claim 10 wherein the natural light filler is kaolin, clay, chalk, siliceous chalk or diatomaceous earth.
Claim 13
Dependent Claim
171 words
A process for the production of a silane/filler preparation which comprises introducing at least one carbon black and/or at least one silicate filler in powder form into a powder mixer in a quantity of from 95 to 30% by weight, after which at least one liquid silane corresponding to the following formula X.sub.p --C.sub.m H.sub.2m+1-p SiR.sub.n.sup.1 (OR).sub.3-n, I in which X=a halogen atom p=1 or 2, m=1 to 5, R 1 =a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group or the phenyl group, R=a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group, the phenyl group, benzyl group or a C 1 - to C 5 -alkoxy-C 1 - to C 5 -alkyl group, and n=0, 1 or 2, is added in a quantity of from 5 to 70% by weight, respectively balanced to 100% relative to the filler, followed by brief intensive mixing until a powder-form or granular free-flowing preparation is formed.
Claim 14
Dependent Claim
171 words
A process for the production of a silane/filler preparation which comprises introducing at least one carbon black and/or at least one silicate filler in powder form into a powder mixer in a quantity of from 95 to 30% by weight, after which at least one liquid silane corresponding to the following formula X.sub.p --C.sub.m H.sub.2m+1-p SiR.sub.n.sup.1 (OR).sub.3-n, I in which X=a halogen atom p=1 or 2, m=1 to 5, R 1 =a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group or the phenyl group, R=a C 1 - to C 5 -alkyl group, a C 5 - to C 8 -cycloalkyl group, the phenyl group, benzyl group or a C 1 - to C 5 -alkoxy-C 1 - to C 5 -alkyl group, and n=0, 1 or 2, is added in a quantity of from 5 to 70% by weight, respectively balanced to 100% relative to the filler, followed by brief intensive mixing until a powder-form or granular free-flowing preparation is formed.
Claim 15
Dependent Claim
24 words
A process as claimed in claim 12 wherein the silane is sprayed onto the particles of the filler in motion in the powder mixer.
Claim 16
Dependent Claim
28 words
A process as claimed in claim 12 wherein the silane is applied in solution or suspension to the particles of the filler in motion in the powder mixer.
Claim 17
Dependent Claim
12 words
A silane/filler preparation as claimed in claim 4 wherein n is 0.
Claim 18
Dependent Claim
20 words
A silane/filler preparation as claimed in claim 15 where R is a C 1 - to C 5 -alkyl group.
Claim 19
Dependent Claim
12 words
A silane/filler preparation as claimed in claim 16 where p is 1.
Claim 20
Dependent Claim
14 words
A silane/filler preparation as claimed in claim 17 where the silane is 3-chloropropyl triethoxysilane.
Claim 21
Dependent Claim
13 words
A moulding composition comprising a silane/filler of claim 1 and a mouldable polymer.
Claim 22
Dependent Claim
10 words
A moulding composition according to claim 19 which is vulcanisable.
Claim 23
Dependent Claim
19 words
A vulcanisable or cross-linkable rubber moulding composition comprising a silane/filler of claim 1 and a vulcanisable or cross-linkable rubber.
Claim 24
Dependent Claim
18 words
A composition according to claim 21 wherein the rubber is a sulphur vulcanisable natural rubber or synthetic rubber.
Claim 25
Dependent Claim
30 words
A composition according to claim 22 wherein the rubber is natural rubber, a polybutadiene, polyisoprene, butadiene-styrene copolymer, butadiene-acrylonitrile copolymer, polychlorobutadiene, butyl rubber, chlorobutyl rubber, bromobutyl rubber, or ethylene-propylene-non-conjugated polyene terpolymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |