US4476278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dustproof film forming material
Assignee: Momentive Performance Materials Japan LLC
•
Filing: 1984-01-05
•
Granted: 1984-10-09
•
Expires: 2004-01-05
Abstract
Abstract A composition curable to a dustproof film comprising: (A) 100 parts by weight of an alkyd resin, (B) 5 to 200 parts by weight of methyltrimethoxysilane, (C) a curing catalyst; and (D) 50 to 5000 parts by weight of a solvent mixture consisting of (a) a volatile organosilicon compound which has a boiling point of 70 DEG to 250 DEG C. at atmospheric pressure and has a formula selected from the group consisting of (R1)4Si, (R2)3SiO[(R3)2SiO]m Si(R2)3 R4Si[OSi(R5)3]3 and [(R6)2SiO]n wherein R1 to R6 respectively represent the same or different alkyl groups, m represents 0 or a positive integer and n represents a positive integer of 3 or above, and (b) a hydrocarbon solvent substantially free of methanol, wherein the amount of (a) is 5 to 95 wt. % of the total amount of (a) and (b).
Inventors
- 👤 Chiyuki Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:54
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C09; C09D; C09D167/00; C09D167/08; C09D183/00; C09D183/04; C08J2367/00; C08J2367/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A composition curable to a dustproof coating material comprising: (A) 100 parts by weight of an alkyd resin, (B) 5 to 200 parts by weight of methyltrimethoxysilane, (C) a curing catalyst; and (D) 50 to 5000 parts by weight of a solvent mixture consisting of (a) a volatile organosilicon compound which has a boiling point of 70° to 250° C. at atmospheric pressure and has a formula selected from the group consisting of (R.sup.1).sub.4 Si, (R.sup.2).sub.3 SiO[(R.sup.3).sub.2 SiO].sub.m Si(R.sup.2).sub.3, R.sup.4 Si[OSi(R.sup.5).sub.3 ].sub.3 and [(R.sup.6).sub.2 SiO].sub.n wherein R 1 to R 6 respectively represent the same or different alkyl groups, m represents O or a positive integer and n represents a positive integer of 3 or above and (b) a hydrocarbon solvent substantially free of methanol wherein the amount of (a) is 5 to 95 wt % of the total amount of (a) and (b).
Claim 2
Dependent Claim
144 words
A composition curable to a dustproof coating material comprising: (A) 100 parts by weight of an alkyd resin, (B) 5 to 200 parts by weight of methyltrimethoxysilane, (C) a curing catalyst; and (D) 50 to 5000 parts by weight of a solvent mixture consisting of (a) a volatile organosilicon compound which has a boiling point of 70° to 250° C. at atmospheric pressure and has a formula selected from the group consisting of (R.sup.1).sub.4 Si, (R.sup.2).sub.3 SiO[(R.sup.3).sub.2 SiO].sub.m Si(R.sup.2).sub.3, R.sup.4 Si[OSi(R.sup.5).sub.3 ].sub.3 and [(R.sup.6).sub.2 SiO].sub.n wherein R 1 to R 6 respectively represent the same or different alkyl groups, m represents O or a positive integer and n represents a positive integer of 3 or above and (b) a hydrocarbon solvent substantially free of methanol wherein the amount of (a) is 5 to 95 wt % of the total amount of (a) and (b).
Claim 3
Dependent Claim
20 words
A composition as set forth in claim 1 wherein said alkyd resin (A) is a room temperature curable alkyd resin.
Claim 4
Dependent Claim
52 words
A composition as set forth in claim 1 wherein at least 50 wt % of polybasic acids or their derivatives which comprise said alkyd resin (A) are phthalic compounds selected from the group consisting of phthalic acid, isophthalic acid, alkyl esters of phthalic acid, alkyl esters of isophthalic acid and phthalic anhydride.
Claim 5
Dependent Claim
20 words
A composition as set forth in claim 1 wherein R 2 to R 6 of compound (D)(a) are methyl groups.
Claim 6
Dependent Claim
36 words
A composition as set forth in claim 1 wherein said curing catalyst (C) is selected from the group consisting of carboxylic acid salts of manganese, cobalt, tin, and zinc and carboxylic acid disalts of dialkyl tin.
References Cited (Backward Citations)
US4257932A
Cited
US4287109A
Cited
US4368235A
Cited
US4436856A
Cited
US4433007A
Cited
US4377676A
Cited
US4395462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |