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US4440913A Expired / Lapsed US ⏱️ 0.0 years remaining

Coating composition for pliable substrates

Assignee: Kansai Paint Co Ltd
•
Filing: 1982-12-22
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Granted: 1984-04-03
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Expires: 2002-12-22
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Abstract

Abstract In a heat-curable coating composition containing an oil-free polyester resin and an aminoaldehyde resin as binder components, the improvement wherein (A) the materials for said oil-free polyester resin contain 40 to 75% by weight, based on the total weight of said materials, of at least one polyester-forming compound selected from the group consisting of (a) an aliphatic dibasic acid represented by the formula HOOC--CH 2 -- n COOH wherein n is an integer of 4 to 10 as a polybasic acid, (b) an aliphatic glycol represented by the formula HO--CH 2 -- n OH wherein n is an integer of 4 to 10 as a polyhydric alcohol, and (c) a lactone represented by the formula ##STR1## wherein n is an integer of 4 to 10, (B) the entire polybasic acid components of the polyester resin contain at least 10%, based on the total weight of said polybasic acid components, of an alicyclic polybasic acid or its anhydride, and (C) the polyester resin has a hydroxyl value of 20 to 95.

Inventors

  • 👤 Shinji Sugiura
  • 👤 Yasuhiro Fujii
  • 👤 Katsunori Sato
  • 👤 Tuguo Nezu
  • 👤 Yasumasa Okumura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 07:23
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/60; C09; C09D; C09D167/00

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 193 words
In a heat-curable coating composition containing an oil-free polyester resin composed substantially of a condensation product of an aliphatic polybasic acid, an aromatic polybasic acid, or the anhydrides thereof and a polyhydric alcohol and an aminoaldehyde resin as binder components, the improvement wherein (A) the materials for said oil-free polyester resin contain 40 to 75% by weight, based on the total weight of said materials, of at least one polyester-forming compound selected from the group consisting of (a) an aliphatic dibasic acid represented by the formula HOOC--CH 2 -- n COOH wherein n is an integer of 4 to 10 as a polybasic acid, (b) an aliphatic glycol represented by the formula HO--CH 2 -- n OH wherein n is an integer of 4 to 10 as a polyhydric alcohol, and (c) a lactone represented by the formula ##STR5## wherein n is an integer of 4 to 10, (B) the entire polybasic acid components of the polyester resin contain at least 10%, based on the total weight of said polybasic acid components, of an alicyclic polybasic acid or its anhydride, and (C) the polyester resin has a hydroxyl value of 20 to 95.
Claim 2
Dependent Claim 193 words
In a heat-curable coating composition containing an oil-free polyester resin composed substantially of a condensation product of an aliphatic polybasic acid, an aromatic polybasic acid, or the anhydrides thereof and a polyhydric alcohol and an aminoaldehyde resin as binder components, the improvement wherein (A) the materials for said oil-free polyester resin contain 40 to 75% by weight, based on the total weight of said materials, of at least one polyester-forming compound selected from the group consisting of (a) an aliphatic dibasic acid represented by the formula HOOC--CH 2 -- n COOH wherein n is an integer of 4 to 10 as a polybasic acid, (b) an aliphatic glycol represented by the formula HO--CH 2 -- n OH wherein n is an integer of 4 to 10 as a polyhydric alcohol, and (c) a lactone represented by the formula ##STR5## wherein n is an integer of 4 to 10, (B) the entire polybasic acid components of the polyester resin contain at least 10%, based on the total weight of said polybasic acid components, of an alicyclic polybasic acid or its anhydride, and (C) the polyester resin has a hydroxyl value of 20 to 95.
Claim 3
Dependent Claim 44 words
The composition of claim 1 wherein said oil-free polyester resin is a mixture of at least two oil-free polyester resins each derived from those materials which contain 40 to 75% by weight, based on the entire materials, of said at least one polyester-forming compound.
Claim 4
Dependent Claim 43 words
The composition of claim 2 wherein one of the oil-free polyester resins contains at least 60% by weight of said at least one polyester-forming compound, and the other polyester resin contains 0 to 40% by weight of said at least one polyester-forming compound.

References Cited (Backward Citations)

US3502623A Cited
JPS5141093A Cited
US4211689A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-04-03 1987-10-03 1988-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-04-03 1991-10-03 1992-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-04-03 1995-10-03 1996-04-03 $7700.00 Window Closed / Lapsed

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