US4118235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold release agent
Assignee: Daikin Industries Ltd
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Filing: 1976-09-15
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Granted: 1978-10-03
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Expires: 1996-09-15
Abstract
Abstract A composition in the form of a solution or dispersion which includes a perfluoroalkyl group-containing phosphoric acid ester of the formula (R.sub.f XO).sub.n PO(OH).sub.3-n (wherein R f represents a perfluoroalkyl group containing from 4 to 20 carbons, X represents a divalent organic residue and n is an integer from 1 to 3) and an additive which is a surface active agent, a silicone oil, a highly fluorinated organic compound, a wax or a mixture thereof, the composition being useful for imparting mold releasing properties to a mold.
Inventors
- 👤 Norio Horiuchi
- 👤 Shin-ichi-ro Kai
- 👤 Masayoshi Shinjo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:37
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/38; B28B7/384; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29K; B29K2021/00; C; C10; C10M; C10M2201/00; C10M2201/02; C10M2201/10; C10M2201/105; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/044; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/12; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/04; C10M2211/042; C10M2211/044; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/042; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/05; C10M2229/051
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
187 words
A mold release composition comprising a. a perfluoroalkyl group-containing phosphoric acid ester represented by the formula: (R.sub.f YC.sub.q H.sub.2q O).sub.n PO(OH).sub.3-n wherein: R f represents a perfluoroalkyl having 4 to 20 carbon atoms; Y is CH 2 CH(Z) where Z is H, CH 3 , C 2 H 5 , Cl or OR where R is H, CH 3 , C 2 H 5 , COCH 3 , COC 2 H 5 or CH 2 COOH or a salt of CH 2 COOH, or SO 2 N(R') where R' is an alkyl group having 1 to 4 carbon atoms: q is an integer of 0 to 4 when Y is CH 2 CH(Z) or 1 tO 4 when Y is SO 2 N(R'); and n is an integer of 1 to 3, or a salt thereof; b. a non-curable polysiloxane having a boiling point of at least 100°C and a melting point not higher than 150°C or a highly fluorinated organic compound, said highly fluorinated organic compound being a liquid or solid at room temperature and having a melting point below 150°C., and c. a liquid carrier.
Claim 2
Dependent Claim
187 words
A mold release composition comprising a. a perfluoroalkyl group-containing phosphoric acid ester represented by the formula: (R.sub.f YC.sub.q H.sub.2q O).sub.n PO(OH).sub.3-n wherein: R f represents a perfluoroalkyl having 4 to 20 carbon atoms; Y is CH 2 CH(Z) where Z is H, CH 3 , C 2 H 5 , Cl or OR where R is H, CH 3 , C 2 H 5 , COCH 3 , COC 2 H 5 or CH 2 COOH or a salt of CH 2 COOH, or SO 2 N(R') where R' is an alkyl group having 1 to 4 carbon atoms: q is an integer of 0 to 4 when Y is CH 2 CH(Z) or 1 tO 4 when Y is SO 2 N(R'); and n is an integer of 1 to 3, or a salt thereof; b. a non-curable polysiloxane having a boiling point of at least 100°C and a melting point not higher than 150°C or a highly fluorinated organic compound, said highly fluorinated organic compound being a liquid or solid at room temperature and having a melting point below 150°C., and c. a liquid carrier.
Claim 3
Dependent Claim
11 words
A composition according to claim 1 wherein (b) is said polysiloxane.
Claim 4
Dependent Claim
32 words
A composition according to claim 2 wherein said polysiloxane is present in an amount 0.05 to 10 parts by weight per one part by weight of said perfluoroalkyl group-containing phosphoric acid ester.
Claim 5
Dependent Claim
14 words
A composition according to claim 1 wherein (b) is said highly fluorinated organic compound.
Claim 6
Dependent Claim
35 words
A composition according to claim 4 wherein said highly fluorinated organic compound is present in an amount 0.05 to 10 parts by weight per one part by weight of said perfluoroalkyl group-containing phosphoric acid ester.
Claim 7
Dependent Claim
32 words
A composition according to claim 4 wherein said highly fluorinated compound is selected from the group consisting of highly fluorinated alkanes, highly fluorinated inner olefins, highly fluorinated polyesters and highly fluorinated amines.
Claim 8
Dependent Claim
12 words
A composition according to claim 1 wherein said liquid carrier comprises water.
Claim 9
Dependent Claim
14 words
A composition according to claim 1 wherein said liquid carrier comprises an organic solvent.
Claim 10
Dependent Claim
23 words
A composition according to claim 8 wherein said organic solvent is selected from the group consisting of acetone, isopropanol, trichlorofluoromethane, 1,2-difluorotetrachloroethane and 1,1,2-trichlorotrifluoroethane.
Claim 11
Dependent Claim
21 words
A composition according to claim 1 wherein the total amount of (a) and (b) ranges from 0.1 to 50 weight %.
Claim 12
Dependent Claim
14 words
A composition according to claim 1 wherein said integer n is 1 or 2.
References Cited (Backward Citations)
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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) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |