US4216035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable protective coating and process of using same
Assignee: International Business Machines Corp
•
Filing: 1977-12-23
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Granted: 1980-08-05
•
Expires: 1997-12-23
Abstract
Abstract A film-forming composition comprising an organic flux base material; and a carboxylic acid anhydride and/or aldehyde; and a process for using are provided.
Inventors
- 👤 Peter Bakos
- 👤 Roger E. Haggett
- 👤 Richard M. Poliak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:46
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/47; B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; C; C09; C09D; C09D171/00; C09D171/02; C09D5/00; C09D5/20; H10W72/00; H10W72/20; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/282; H05K3/284; H05K3/30; H05K3/32; H05K3/34; H05K3/3489
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
84 words
A film-forming composition which is readily removable from a substrate by washing with a solvent which comprises: (A) an organic flux material selected from the group of shellac, rosin, polyalkylene glycol, polyalkylene glycol monoester, polyalkylene glycol monoether, and mixtures thereof; and (B) a component selected from the group consisting of organic carboxylic acid anhydride, aldehyde and mixtures thereof in an amount sufficient to promote wetting of the film-forming composition, and wherein said flux base material and said component are mutually soluble with each other.
Claim 2
Dependent Claim
84 words
A film-forming composition which is readily removable from a substrate by washing with a solvent which comprises: (A) an organic flux material selected from the group of shellac, rosin, polyalkylene glycol, polyalkylene glycol monoester, polyalkylene glycol monoether, and mixtures thereof; and (B) a component selected from the group consisting of organic carboxylic acid anhydride, aldehyde and mixtures thereof in an amount sufficient to promote wetting of the film-forming composition, and wherein said flux base material and said component are mutually soluble with each other.
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein said flux material is water soluble to the extent that said composition is readily removable from a substrate by washing with water.
Claim 4
Dependent Claim
26 words
The composition of claim 1 wherein said flux material is selected from the group of polyalkylene glycol, polyalkylene glycol monoester, polyalkylene glycol monoether, and mixtures thereof.
Claim 5
Dependent Claim
54 words
The composition of claim 3 wherein said flux material is selected from the group of polyethylene glycol having molecular weight of between about 200 and 6000, polyethylene glycol monoester having molecular weight of between about 200 and 6000, polyethylene glycol monoether having a molecular weight of between about 200 and 6000, and mixtures thereof.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein said component is an organic carboxylic acid anhydride.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein said component is maleic anhydride.
Claim 8
Dependent Claim
11 words
The composition of claim 1 wherein said component is an aldehyde.
Claim 9
Dependent Claim
10 words
The composition of claim 7 wherein said aldehyde is water-soluble.
Claim 10
Dependent Claim
29 words
The composition of claim 1 which contains about 5 to about 30% by weight of said flux material and about 10 to about 30% by weight of said component.
Claim 11
Dependent Claim
11 words
The composition of claim 1 which further includes a nonreactive diluent.
Claim 12
Dependent Claim
21 words
The composition of claim 10 wherein said diluent is selected from the group consisting of alcohols, cellosolves, ketones, and mixtures thereof.
Claim 13
Dependent Claim
20 words
The composition of claim 10 wherein said diluent is present in amounts from about 50 to about 85.5% by weight.
Claim 14
Dependent Claim
19 words
The composition of claim 12 wherein said diluent is present in an amount of at least 60% by weight.
Claim 15
Dependent Claim
12 words
The composition of claim 1 which further includes a synthetic thermoplastic polymer.
Claim 16
Dependent Claim
20 words
The composition of claim 14 wherein said polymer is water-soluble and has a molecular weight between about 35,000 and 150,000.
Claim 17
Dependent Claim
21 words
The composition of claim 14 wherein said polymer is present in an amount from about 0.2 to about 1% by weight.
Claim 18
Dependent Claim
10 words
The composition of claim 1 which further includes a plasticizer.
Claim 19
Dependent Claim
19 words
The composition of claim 17 wherein said plasticizer is a phthalate having about 14 to about 38 carbon atoms.
Claim 20
Dependent Claim
11 words
The composition of claim 17 wherein said plasticizer is diallyl phthalate.
Claim 21
Dependent Claim
10 words
The composition of claim 17 wherein said plasticizer is camphor.
Claim 22
Dependent Claim
11 words
The composition of claim 17 wherein said plasticizer is an amine.
Claim 23
Dependent Claim
10 words
The composition of claim 17 wherein said plasticizer is triethanolamine.
Claim 24
Dependent Claim
20 words
The composition of claim 17 wherein said plasticizer is present in amounts from about 0.2 to about 1.0% by weight.
Claim 25
Dependent Claim
59 words
The composition of claim 1 which includes about 5 to about 30% by weight of said flux material, about 10 to about 30% by weight of said component, about 50 to about 85.5% by weight of a nonreactive diluent, about 0.2-1% by weight of a plasticizer and about 0.2-1% by weight of a polymer different from the flux material.
Claim 26
Dependent Claim
23 words
The composition of claim 1 wherein said component is an anhydride of an acid which contains no more than about 18 carbon atoms.
Claim 27
Dependent Claim
16 words
The composition of claim 7 wherein said aldehyde contains no more than about 18 carbon atoms.
Claim 28
Dependent Claim
18 words
The composition of claim 24 wherein said polymer is capable of forming a salt with an anhydrous acid.
Claim 29
Dependent Claim
10 words
The composition of claim 27 wherein said polymer is polyvinylpyrrolidone.
Claim 30
Dependent Claim
10 words
The composition of claim 14 wherein said polymer is polyvinylpyrrolidone.
Claim 31
Dependent Claim
40 words
The composition of claim 1 which further includes up to about 5% by weight of an acid from the group of polycarboxylic acids, monocarboxylic acids which contain a hydroxyl group, polycarboxylic acids which contain a hydroxyl group, and mixtures thereof.
Claim 32
Dependent Claim
14 words
The composition of claim 1 wherein the pH is about 6 to about 7.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |