Patent EP0115160A2 successfully refreshed from Google Patents.
EP0115160A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Abrasives with binder comprising adduct of polyisocyanate and polyalkoxyacrylate
Assignee: Mobil Oil AS
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Filing: 1983-12-20
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Granted: —
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Expires: 2003-12-20
Abstract
Abstract Abrasive articles in which the binder is a cured composition comprising the polyacrylic adduct of a polyisocyanate and a poly(lower-alkoxy) ester of acrylic or methacrylic acid, N-vinylpyrrolidone and optionally a resinous polyacrylate cross-linking agent.
Inventors
- 👤 John Philip Guarino
- 👤 Mark Bertram Roller
- 👤 Frank Andrew Nagy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 14:11
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
31 words
An abrasive article comprising abrasive particles and a cured binder, which in uncured form comprises the polyacrylic adduct of a polyisocyanate and a poly(lower-alkoxy) ester of acrylic acid or methacrylic acid.
Claim 2
Dependent Claim
31 words
An abrasive article comprising abrasive particles and a cured binder, which in uncured form comprises the polyacrylic adduct of a polyisocyanate and a poly(lower-alkoxy) ester of acrylic acid or methacrylic acid.
Claim 3
Dependent Claim
15 words
The article of claim 1 in which the ester is an ester of acrylic acid.
Claim 4
Dependent Claim
26 words
The article of claim 1 in which the ester is an adduct of 1 to 5 moles of propylene oxide and 1 mole of hydroxyethyl acrylate.
Claim 5
Dependent Claim
32 words
The article of claim 3 in which the polyisocyanate is toluene diisocyanate, and which binder comprises in addition, up to 20 weight percent polypropoxy adduct of hydroxyethylacrylate based on the polyacrylic adduct.
Claim 6
Dependent Claim
24 words
The article of claim 1 in which the ester is an adduct of 2 moles of propylene oxide and 1 mole of hydroxyethyl acrylate.
Claim 7
Dependent Claim
26 words
The article of any preceding claim in which uncured binder includes up to 20 weight percent of N-vinylpyrrolidone based on the weight of the polyacrylic adduct.
Claim 8
Dependent Claim
42 words
The article of claim 1 in which the uncured binder comprises 50 to 90 weight percent of the polyacrylic adduct of a polyisocyanate; 5 to 20 weight percent of N-vinylpyrrolidone; and 0 to 40 weight percent of a resinous polyacrylic cross-linking agent.
Claim 9
Dependent Claim
24 words
The article of claim 7 in which the resinous polyacrylic cross-linking agent is an adduct of acrylic acid and a epichlorohydrin-bisphenol A epoxy resin.
Claim 10
Dependent Claim
18 words
The article of any preceding claim in which the cured binder has a Tg of at least 70°C.
Claim 11
Dependent Claim
20 words
The article of claim 9 in which the cured binder in cured form has a Tg of at least 85°C.
Claim 12
Dependent Claim
48 words
A composition of matter comprising 50 to 90 weight percent of the polyacrylic adduct of a polyisocyanate and a poly(lower-alkoxy) ester of acrylic acid or of methacrylic acid; 5 to 20 weight percent of N-vinyl pyrrolidone; and 0 to 40 weight percent of a resinous polyacrylic cross-linking agent.
Claim 13
Dependent Claim
48 words
A composition of matter comprising 50 to 90 weight percent of the polyacrylic adduct of a polyisocyanate and a poly(lower-alkoxy) ester of acrylic acid or of methacrylic acid; 5 to 20 weight percent of N-vinyl pyrrolidone; and 0 to 40 weight percent of a resinous polyacrylic cross-linking agent.
Claim 14
Dependent Claim
15 words
The composition of claim 11 in which the ester is an ester of acrylic acid.
Claim 15
Dependent Claim
26 words
The composition of claim 11 in which the ester is an adduct of 1 to 5 moles of propylene oxide and 1 mole of hydroxyethyl acrylate.
Claim 16
Dependent Claim
30 words
The composition of claim 13 in which the polyisocyanate is toluene diisocyanate, and which binder comprises up to 20 weight percent polypropoxy adduct of hydroxyethylacrylate based on the polyacrylic adduct.
Claim 17
Dependent Claim
24 words
The composition of claim 11 in which the ester is an adduct of 2 moles of propylene oxide and 1 mole of hydroxyethyl acrylate.
Claim 18
Dependent Claim
24 words
The composition of claims 11-15 in which the resinous polyacrylic cross-linking agent is an adduct of acrylic acid and a epichlorohydrin-bisphenol A epoxy resin.
References Cited (Backward Citations)
No citation records indexed.
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