Patent CA1154895A successfully refreshed from Google Patents.
CA1154895A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Flowable mixture and use of synthetic calcium silicate
Assignee: BASF Schweiz AG
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Filing: 1981-02-18
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Granted: 1983-10-04
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Expires: 2001-02-18
Abstract
Abstract Flowable mixture and use of synthetic calcium silicate Abstract: Crystalline, synthetic calcium silicate, which can be in diverse stages of hydration and has a high length/ width ratio and a width dimension of less than 1 µm, is outstandingly suitable as a sedimentation inhibitor for finely divided fillers in liquid substances.
Inventors
- 👤 Dieter Skudelny
- 👤 Gerhard Rauth
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 18:16
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
75 words
A flowable mixture of (a) a liquid polymerisable synthetic resin or a liquid reactant of a synthetic resin with (b) a filler suggested therein and a sedimentation inhibitor, which mixture contains, as the sedimentation inhibitor, an effective amount of crystalline synthetic calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and width dimensions of less than 1 µm, either on its own or in combination with other fillers.
Claim 2
Dependent Claim
75 words
A flowable mixture of (a) a liquid polymerisable synthetic resin or a liquid reactant of a synthetic resin with (b) a filler suggested therein and a sedimentation inhibitor, which mixture contains, as the sedimentation inhibitor, an effective amount of crystalline synthetic calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and width dimensions of less than 1 µm, either on its own or in combination with other fillers.
Claim 3
Dependent Claim
26 words
A mixture according to claim 1, which contains 10 to 80% by weight of fillers and 90 to 20% by weight of synthetic resin or reactant.
Claim 4
Dependent Claim
30 words
A mixture according to claim 2, wherein 0.5 to 10% by weight of the fillers are made up by calcium silicate, based on the total amount of a) and b).
Claim 5
Dependent Claim
15 words
A mixture according to claim 1, wherein the calcium silicate is acicular, fibrous or band-shaped.
Claim 6
Dependent Claim
36 words
A mixture according to claim 1, wherein the maxima of the crystallite size are 0.6 µum in respect of the length, 0.25 µm in respect of the width and 0.01 µm in respect of the thickness.
Claim 7
Dependent Claim
16 words
A mixture according to claim 1, wherein the calcium silicate is xonotlite of the formula Ca6[(OH)2/Si6O17].
Claim 8
Dependent Claim
33 words
A mixture according to claim 1, which contains an unsaturated polyester resin, a polyurethane resin or a pre-reacted epoxide resin as the synthetic resin, or a polyepoxide compound or a hardener for this.
Claim 9
Dependent Claim
16 words
A mixture according to claim 1, which contains 10 to 60% by weight of the filler.
Claim 10
Dependent Claim
33 words
A mixture according to claim 1, which contains acicular crystalline xonotlite (Ca6[(OH)2/Si6O17] or band-shaped crystalline calcium silicate with a length/width ratio of 100:1 to 50:1 and width dimensions of less than 1 µm.
Claim 11
Dependent Claim
49 words
Process for preventing the sedimentation of finely divided fillers in liquid substances, which comprises adding and homogenously dispersing an effective amount of synthetic crystalline calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and a width dimension of less than 1 µm.
Claim 12
Dependent Claim
49 words
Process for preventing the sedimentation of finely divided fillers in liquid substances, which comprises adding and homogenously dispersing an effective amount of synthetic crystalline calcium silicate, which can be in diverse stages of hydration and has a high length/width ratio and a width dimension of less than 1 µm.
References Cited (Backward Citations)
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