US4609688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent, anti-fogging coating comprised of plastic material containing a surface active agent
Assignee: Saint Gobain Vitrage SA
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Filing: 1985-04-22
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Granted: 1986-09-02
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Expires: 2005-04-22
Abstract
Abstract The invention relates to a transparent, antifogging coating or film comprised of a plastic material, which coating or film may be employed as an external layer in a laminated pane. The invention transparent coating or film is a highly elastic, three-dimensionally crosslinked layer comprised of at least one surface active agent disposed within its crosslinked structure.
Inventors
- 👤 Helmer Radisch
- 👤 Werner Scholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10834; B32B17/10165; B32B17/1033; B32B17/1055; B32B17/1077; C; C08; C08K; C08K5/00; C08K5/0008; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/315; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31601
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
43 words
A coating or film having anti-lacerative or self-healing properties comprising a transparent, highly elastic, heat-setting three dimensionally crosslinked polyurethane, and an effective amount of at least one surface active agent comprising one or more C 8 -C 16 polyethoxylated fatty alcohols disposed therein.
Claim 2
Dependent Claim
43 words
A coating or film having anti-lacerative or self-healing properties comprising a transparent, highly elastic, heat-setting three dimensionally crosslinked polyurethane, and an effective amount of at least one surface active agent comprising one or more C 8 -C 16 polyethoxylated fatty alcohols disposed therein.
Claim 3
Dependent Claim
33 words
The coating or film of claim 1 wherein the surface active agent is a C 12 to C 14 linear alcohol ethoxylated by about 7 mols of epoxyethane per mole of the alcohol.
Claim 4
Dependent Claim
28 words
The coating or film of claim 1 wherein the surface active agent is an octyl alcohol ethoxylated by about 4 moles of epoxyethane per mole of the alcohol.
Claim 5
Dependent Claim
29 words
The coating or film of claim 1, wherein said surface active agent is used in an amount by weight which is approximately equal to the amount of polyurethane used.
Claim 6
Dependent Claim
66 words
A laminated pane comprising: (a) a monolithic or laminated support of a silicate glass material or plastic material, and (b) a coating or film layer on said support having anti-lacerative or self-healing properties comprising a transparent, highly elastic, heat-setting three-dimensionally crosslinked polyurethane and an effective amount of at least one surface active agent comprising one or more C 8 -C 16 polyethoxylated fatty alcohols disposed therein.
Claim 7
Dependent Claim
66 words
A laminated pane comprising: (a) a monolithic or laminated support of a silicate glass material or plastic material, and (b) a coating or film layer on said support having anti-lacerative or self-healing properties comprising a transparent, highly elastic, heat-setting three-dimensionally crosslinked polyurethane and an effective amount of at least one surface active agent comprising one or more C 8 -C 16 polyethoxylated fatty alcohols disposed therein.
Claim 8
Dependent Claim
31 words
The laminated pane of claim 5, wherein the surface active agent is a C 12 -C 14 linear alcohol ethoxylated by about 7 moles of epoxyethane per mole of the alcohol.
Claim 9
Dependent Claim
27 words
The laminated pane of claim 5, wherein the surface active agent is an octyl alcohol ethoxylated by about 4 moles of epoxyethane per mole of the alcohol.
Claim 10
Dependent Claim
28 words
The laminated pane of claim 5, wherein said surface active agent is used in an amount by weight which is approximately equal to the amount of polyurethane used.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |