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US4594379A Expired / Lapsed US ⏱️ 0.0 years remaining

Non-fogging coating composition and a shaped article coated therewith

Assignee: Nippon Sheet Glass Co Ltd
•
Filing: 1985-04-17
•
Granted: 1986-06-10
•
Expires: 2005-04-17
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Abstract

Abstract A non-fogging coating composition, which comprises (A) 0 to 50 parts by weight of epoxy group-containing organic silane compounds or partial hydrolyzates thereof, (B) 20 to 80 parts by weight of a polyhydric alcohol having an ethylene oxide chain, (C) 10 to 75 parts by weight of a polymer or copolymer having at least 20% by weight of repeating structural units having the general formula <IMAGE> wherein, R4 and R5 independently stand for H or a lower alkyl group or carbonyl group and X stands for a side chain possessing an epoxy group, and (D) a catalytic amount of a curing catalyst. And a shaped article of polycarbonate type resin coated therewith.

Inventors

  • 👤 Masaaki Funaki
  • 👤 Noboru Ohtani
  • 👤 Motoaki Yoshida
  • 👤 Akira Fujioka
  • 👤 Kazuo Sakiyama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 13:45
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/14; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/054; C09D157/00; C09D157/04; C09D163/00; C09D183/00; C09D183/04; C09D183/06; C08J2369/00; C08J2483/00; C08J2483/04; C08L; C08L71/00; C08L71/02

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 281 words
A non-fogging transparent coating composition free of organophosphate ester and amine-aldehyde resin crosslinking agents and complex salt photoinitiators, which comprises: (A) an effective amount up to 50 parts by weight ##STR27## of at least one compound selected from the group consisting of epoxy group-containing organic silane compounds represented by the general formula (1): ##STR28## wherein R 1 stands for an organic group having an epoxy group, R 2 for a hydrogen atom, a hydrocarbon group having 1 to 6 carbon atoms or a vinyl group, R 3 for a hydrocarbon group having 1 to 5 carbon atoms, an alkoxyalkyl group or an acyl group having 1 to 4 carbon atoms, a for an integer having the value of 1 to 3 and b 0 or for an integer having the value of 1 to 2, providing that a+b≦3 is satisfied, and partial hydrolyzates thereof, (B) 20 to 80 parts by weight selected from triethylene glycol and a polyhydric alcohol which has an ethylene oxide chain and a molecular weight of 200 to 2000 and is capable of reacting with a mixture of the components (A) and (C) to form a coating film, (C) 10 to 75 parts by weight of a polymer or copolymer containing at least 20% by weight of repeating structural units represented by the general formula (2): ##STR29## wherein, R 4 and R 5 independently stand for a hydrogen atom, a lower alkyl group or a carboxyl group and X stands for a side chain possessing an epoxy group, and (D) a catalytic amount of a curing catalyst, providing that the total of the amounts of the aforementioned components (A), (B) and (C) is 100 parts by weight.
Claim 2
Dependent Claim 281 words
A non-fogging transparent coating composition free of organophosphate ester and amine-aldehyde resin crosslinking agents and complex salt photoinitiators, which comprises: (A) an effective amount up to 50 parts by weight ##STR27## of at least one compound selected from the group consisting of epoxy group-containing organic silane compounds represented by the general formula (1): ##STR28## wherein R 1 stands for an organic group having an epoxy group, R 2 for a hydrogen atom, a hydrocarbon group having 1 to 6 carbon atoms or a vinyl group, R 3 for a hydrocarbon group having 1 to 5 carbon atoms, an alkoxyalkyl group or an acyl group having 1 to 4 carbon atoms, a for an integer having the value of 1 to 3 and b 0 or for an integer having the value of 1 to 2, providing that a+b≦3 is satisfied, and partial hydrolyzates thereof, (B) 20 to 80 parts by weight selected from triethylene glycol and a polyhydric alcohol which has an ethylene oxide chain and a molecular weight of 200 to 2000 and is capable of reacting with a mixture of the components (A) and (C) to form a coating film, (C) 10 to 75 parts by weight of a polymer or copolymer containing at least 20% by weight of repeating structural units represented by the general formula (2): ##STR29## wherein, R 4 and R 5 independently stand for a hydrogen atom, a lower alkyl group or a carboxyl group and X stands for a side chain possessing an epoxy group, and (D) a catalytic amount of a curing catalyst, providing that the total of the amounts of the aforementioned components (A), (B) and (C) is 100 parts by weight.
Claim 3
Dependent Claim 40 words
A non-fogging transparent coating composition of claim 1 wherein the amount of component (A) is between 5 and 50 parts by weight and wherein the composition is free of organophosphate ester and amine-aldehyde resin crosslinking agents and complex salt photoinitiators.

References Cited (Backward Citations)

GB1565671A Cited
US4291095A Cited
US4181785A Cited
US4181784A Cited
GB2036031A Cited
US4231910A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-06-09 1989-12-09 1990-06-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-06-09 1993-12-09 1994-06-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-06-09 1997-12-09 1998-06-10 $7700.00 Window Closed / Lapsed

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