EP0196903A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Granular compositions based on fluoroelastomers
Assignee: Syensqo Specialty Polymers Italy SpA
•
Filing: 1986-03-27
•
Granted: —
•
Expires: 2006-03-27
Abstract
Abstract Flowing (free flowing) granular compositions based on fluoroelastomers, containing dispersed on their surface, as an anti-caking agent, from 5 to 70% by weight of a polyolefin powder.
Inventors
- 👤 Vincenzo Arcella
- 👤 Gaetano Bianchi
- 👤 Dionisio D'auria
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 08:21
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/124; C08L; C08L23/00; C08L23/02; C08L27/00; C08L27/02; C08L27/12; C08J2327/00; C08J2327/02; C08J2327/12; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
38 words
A granular composition based on a fluoroelastomer containing dispersed on its surface an anti-caking agent, characterized in that the said anti-caking agent is a polyolefin in a powdery form, in an amount from 5 to 70% by weight.
Claim 2
Dependent Claim
38 words
A granular composition based on a fluoroelastomer containing dispersed on its surface an anti-caking agent, characterized in that the said anti-caking agent is a polyolefin in a powdery form, in an amount from 5 to 70% by weight.
Claim 3
Dependent Claim
22 words
A granular composition as claimed in claim 1, characterized in that the fluoroelastomer has a fluorine content greater than 65% by weight.
Claim 4
Dependent Claim
67 words
A granular composition as claimed in claim 1 or 2, characterized in that the fluoroelastomer is selected from vinylidene fluoride and hexafluoropropylene copolymers; vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene terpolymers; vinylidene fluoride, tetrafluoroethylene and perfluoromethyl-vinyl-ether terpolymers; tetrafluoroethylene and propylene copolymers; vinylidene fluoride and chloro-trifluoroethylene copolymers; vinylidene fluoride and hydropentafluoropropylene copolymers; and vinylidene fluoride, hydropentafluoropropylene and tetrafluoroethylene terpolymers, and corresponding products containing in the chain small quantities of bromine.
Claim 5
Dependent Claim
49 words
A granular composition as claimed in any of claims 1 to 3, characterized in that the polyolefin is selected from low, medium and high-density polyethylene, polypropylene, propylene-ethylene copolymers with a predominant content of propylene, both of the random type as well as of the block type, and mixtures thereof.
Claim 6
Dependent Claim
21 words
A granular composition as claimed in any of claims 1 to 3, characterized in that the polyolefin is a low-density polyethylene.
Claim 7
Dependent Claim
19 words
A granular composition as claimed in any of claims 1 to 3, characterized in that the polyolefin is polypropylene.
Claim 8
Dependent Claim
26 words
A granular composition as claimed in any of claims 1 to 6, characterized in that, in addition to the polyolefin, there is used another anti-caking agent.
Claim 9
Dependent Claim
23 words
A granular composition as claimed in claim 7, characterized in that the said another anti-caking agent is barium sulphate, calcium stearate or talc.
Claim 10
Dependent Claim
31 words
A granular composition as claimed in any of claims 1 to 8, characterized in that the said polyolefin anti-caking agent is in an amount of from 10 to 30% by weight.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.