Patent EP0321063A2 successfully refreshed from Google Patents.
EP0321063A2
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EP
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Colloidal polymer dispersion for internal sealing of pipes and process for the application thereof
Assignee: TIB CHemicals AG
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Filing: 1988-12-16
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Granted: —
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Expires: 2008-12-16
Abstract
Abstract Colloidal polymer dispersion for internal sealing of pipe connections containing 1-40% by weight of a water-soluble polyol and 99-60% by weight of an aqueous colloidal polymer dispersion.
Inventors
- 👤 Rolf Kallenbach
- 👤 Karl-Heinz Lemmert
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 05:29
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/12; F; F16; F16L; F16L55/00; F16L55/16; F16L55/162; F16L55/164
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
70 words
A colloidal polymer dispersion for internal sealing of pipe connections, especially pipes carrying town gas or natural gas, which dispersion may be defined as comprising:- (a) in the range of from 1 to 40% by weight of a water-soluble polyol, and (b) in the range of from 99 to 60% by weight of an aqueous colloidal polymer dispersion, the percentages being calculated on the total of water, polymer and polyol.
Claim 2
Dependent Claim
70 words
A colloidal polymer dispersion for internal sealing of pipe connections, especially pipes carrying town gas or natural gas, which dispersion may be defined as comprising:- (a) in the range of from 1 to 40% by weight of a water-soluble polyol, and (b) in the range of from 99 to 60% by weight of an aqueous colloidal polymer dispersion, the percentages being calculated on the total of water, polymer and polyol.
Claim 3
Dependent Claim
18 words
The dispersion as claimed in claim 1 in which the polymer is a polymer of a vinyl compound.
Claim 4
Dependent Claim
15 words
The dispersion as claimed in claim 2 in which the vinyl compound is vinyl acetate.
Claim 5
Dependent Claim
18 words
The dispersion as claimed in claim 2 in which the vinyl compound is an ester of acrylic acid.
Claim 6
Dependent Claim
29 words
The dispersion as claimed in any one of claims 2 to 4 in which the polymer is a terpolymer of vinyl acetate, ethylene and an ester of acrylic acid.
Claim 7
Dependent Claim
27 words
The dispersion as claimed in any one of the preceding claims in which the polyol has a boiling point at atmospheric pressure of at least 250 °C.
Claim 8
Dependent Claim
18 words
The dispersion as claimed in any one of the preceding claims in which the water-soluble polyol is glycerin.
Claim 9
Dependent Claim
49 words
The dispersion as claimed in any one of the preceding claims which contains in the range of from 10 to 50% by weight of water and in the range of from 2 to 20% by weight of the water-soluble polyol, calculated on the total of water, polymer and polyol.
Claim 10
Dependent Claim
37 words
A process for internal sealing of pipe connections, especially pipes carrying town gas or natural gas, which process comprises applying to the pipe connections a colloidal polymer dispersion as claimed in any one of the preceding claims.
References Cited (Backward Citations)
No citation records indexed.
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