Patent US4374236A successfully refreshed from Google Patents.
US4374236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomers and process for their preparation
Assignee: Avon Products Inc
•
Filing: 1981-08-27
•
Granted: 1983-02-15
•
Expires: 2001-08-27
Abstract
Abstract Elastomeric materials which are formed by curing a mixture of a carboxylic acid and/or a natural oil containing a carboxyl group and an amino alkyl dimethylpolysiloxane having alkoxy functional groups are disclosed. Curing is preferably effected by heating, generally for 24 or more hours depending on the materials used, their thickness and the desired transparency. The materials may optionally contain fillers to enhance strength. Incorporation of a fragrance in the elastomeric materials renders them useful as pomanders. The elastomers also have utility as shock cushions and coatings.
Inventors
- 👤 Alexander P. Znaiden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/18; C08G77/22; C08G77/26
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
30 words
An elastomeric material comprising a cured mixture of a member of the group consisting of a carboxylic acid and a carboxyl-containing natural oil and an alkoxy substituted amino alkyl dimethylpolysiloxane.
Claim 2
Dependent Claim
30 words
An elastomeric material comprising a cured mixture of a member of the group consisting of a carboxylic acid and a carboxyl-containing natural oil and an alkoxy substituted amino alkyl dimethylpolysiloxane.
Claim 3
Dependent Claim
14 words
The elastomer of claim 1 wherein the alkoxy substituent contains 1 to 8 carbons.
Claim 4
Dependent Claim
33 words
The elastomer of claim 1 which is transparent and wherein the carboxylic acid is selected from the group consisting of caproic, caprylic, undecylenic, linoleic and isostearic acids, oleic dimer and tall oil dimer.
Claim 5
Dependent Claim
29 words
An elastomer in accordance with claim 1 which is opaque and wherein the carboxylic acid is selected from the group consisting of oleic and ricinoleic acids, and ricinoleic dimer.
Claim 6
Dependent Claim
37 words
An elastomer in accordance with claim 1 which is opaque and wherein the natural oil is selected from the group consisting of castor oil, poppy seed oil, wheat germ oil, mink oil, lanolin, lecithin and jojoba oil.
Claim 7
Dependent Claim
33 words
The elastomer of claim 1 comprising the cured mixture of about 1 to 30 parts by weight acid or oil with about 70 to 99 parts by weight alkoxy substituted amino alkyl dimethylpolysiloxane.
Claim 8
Dependent Claim
9 words
The elastomer of claim 1 which contains a fragrance.
Claim 9
Dependent Claim
11 words
The use of the elastomer of claim 7 as a pomander.
Claim 10
Dependent Claim
9 words
The elastomer of claim 1 which contains a filler.
Claim 11
Dependent Claim
12 words
The use of the elastomer of claim 1 as a shock cushion.
Claim 12
Dependent Claim
11 words
The use of the elastomer of claim 1 as a coating.
Claim 13
Dependent Claim
41 words
A process for preparing an elastomer comprising: (a) mixing a member of the group consisting of a carboxyl-containing natural oil and a carboxylic acid with a lower alkoxy substituted amino alkyl dimethylpolysiloxane, and (b) curing the mixture until the mixture sets.
Claim 14
Dependent Claim
41 words
A process for preparing an elastomer comprising: (a) mixing a member of the group consisting of a carboxyl-containing natural oil and a carboxylic acid with a lower alkoxy substituted amino alkyl dimethylpolysiloxane, and (b) curing the mixture until the mixture sets.
Claim 15
Dependent Claim
24 words
The process of claim 12 wherein curing is effected at at least 120° F. for at least 24 hours to produce a transparent elastomer.
Claim 16
Dependent Claim
23 words
The process of claim 12 wherein an opaque elastomer is formed by curing in less than 24 hours at greater than 140° F.
Claim 17
Dependent Claim
14 words
The process of claim 12 wherein a fragrance is dissolved in the uncured mixture.
Claim 18
Dependent Claim
29 words
The process of claim 12 wherein the mixture comprises 1-30 weight percent of the acid or natural oil and 70-99 weight percent of the alkoxy substituted amino alkyl dimethylpolysiloxane.
Claim 19
Dependent Claim
30 words
The process of claim 12 wherein the mixture comprises about 20 weight percent of the acid or oil and about 80 weight percent of the alkoxy substituted amino alkyl dimethylpolysiloxane.
Claim 20
Dependent Claim
14 words
The process of claim 12 wherein a filler is added to the uncured mixture.
Claim 21
Dependent Claim
14 words
The process of claim 12 wherein the curing process is effected in a mold.
References Cited (Backward Citations)
US2587295A
Cited
US2718508A
Cited
US2486992A
Cited
US2605243A
Cited
US3032529A
Cited
US3890269A
Cited
US4069178A
Cited
US4051159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |