EP0349248A2
Expired / Lapsed
EP
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Method for producing a molded in place gasket
Assignee: SOUTHLAND INDUSTRIES Inc
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Filing: 1989-06-26
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Granted: —
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Expires: 2009-06-26
Abstract
Abstract Method for producing a seal molded-in-place on a substrate which involves providing a two-part liquid cure composition, supplying the liquid cure composition to a surface of the substrate which is maintained at a temperature sufficiently low to prevent physical distortion and damage to the substrate. The molded-in-place seal is then cured. A substrate having a molded-in-place seal of a cured liquid reactive polymer.
Inventors
- 👤 Ray C. Hetherington
- 👤 Eugene L. Slagowski
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/062; B; B29; B29C; B29C67/00; B29C67/24; B29C67/246; B29C70/00; B29C70/68; B29C70/74; B29K; B29K2083/00; B29K2083/005; B29K2105/00; B29K2105/0002; F01; F01M; F01M11/00; F01M11/0004; F01M2011/0062; F02; F02F; F02F7/00; F02F7/006
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
46 words
A method for producing a seal molded-in-place on a substrate comprising: a) providing a two-part liquid cure composition; and b) supplying said liquid cure composition to a surface of said substrate maintained at a temperature sufficiently low to prevent physical distortion and damage to said substrate.
Claim 2
Independent Claim
46 words
A method for producing a seal molded-in-place on a substrate comprising: a) providing a two-part liquid cure composition; and b) supplying said liquid cure composition to a surface of said substrate maintained at a temperature sufficiently low to prevent physical distortion and damage to said substrate.
Claim 3
Dependent Claim
26 words
The method for producing a seal molded-in-place in accordance with claim 1, further comprising: c) curing said liquid cure composition on said surface of said substrate.
Claim 4
Dependent Claim
28 words
The method for producing a seal molded-in-place in accordance with claim 2, wherein said curing is performed at a curing temperature is maintained below about 400 o F.
Claim 5
Dependent Claim
27 words
The method for producing a seal molded-in-place in accordance with claim 3 wherein said curing temperature is in the range of about 350 o F.-400 o F.
Claim 6
Dependent Claim
21 words
The method for producing a seal molded-in-place in accordance with claim 4, wherein said curing temperature is about 350 o F.
Claim 7
Dependent Claim
31 words
The method for producing a seal molded-in-place in accordance with claim 4, wherein said curing temperature is maintained for a time within the range of about 15 minutes to 30 minutes.
Claim 8
Dependent Claim
19 words
The method for producing a seal molded-in-place in accordance with claim 6, wherein said time is about 30 minutes.
Claim 9
Dependent Claim
50 words
The method for producing a seal molded-in-place in accordance with claim 1, wherein said supplying said liquid cure composition comprises injecting said liquid cure composition into a space provided between said surface of the substrate and a mold surface placed against said surface of the substrate to enclose said space.
Claim 10
Dependent Claim
30 words
The method for producing a seal molded-in-place in accordance with claim 8, wherein said liquid cure composition has a viscosity within the range of about 500,000 to about 1,500,000 centipoises.
Claim 11
Dependent Claim
33 words
The method for producing a seal molded-in-place in accordance with claim 9, wherein said two-part liquid cure composition includes a first part containing a catalyst and a second part containing a cross-linking agent.
Claim 12
Dependent Claim
31 words
The method for producing a seal molded-in-place in accordance with claim 10, wherein said first part and said second part are present in a ratio of about 1:1 to about 10:1.
Claim 13
Dependent Claim
23 words
The method for producing a seal molded-in-place in accordance with claim 11, wherein said two-part liquid cure composition is a platinum reactive system,
Claim 14
Dependent Claim
31 words
The method for producing a seal molded-in-place in accordance with claim 11, wherein said two-part liquid cure composition is selected from the group consisting of silicone rubber compositions and organopolysiloxane compositions.
Claim 15
Dependent Claim
37 words
The method for producing a seal molded-in-place in accordance with claim 13, wherein said two-part liquid cure composition is an organopolysiloxane composition comprising a diorganopolysiloxane oil, finely divided reinforcing silica, a structuring inhibitor, and a cross-linking agent.
Claim 16
Dependent Claim
24 words
The method for producing a seal molded-in-place in accordance with claim 13, wherein said two-component liquid sealing material is a SiH-olefin platinum catalyzed composition.
Claim 17
Dependent Claim
23 words
The method for producing a seal molded-in-place in accordance with claim 8, wherein said substrate comprises a metallic substance and a composite substance.
Claim 18
Dependent Claim
46 words
The method for producing a seal molded-in-place in accordance with claim 16, wherein said substrate is in the form of an oil pan, rocker cover, timing chain cover, intake manifold, water pump housing, oil filter adapter, gear case cover, transmission differential cover, and oil cooler cover.
Claim 19
Dependent Claim
19 words
The method for producing a seal molded-in-place in accordance with claim 17, wherein said substrate is an oil pan.
Claim 20
Dependent Claim
26 words
The method for producing a seal molded-in-place in accordance with claim 17, wherein said metallic substances is selected from the group consisting of aluminum and steel.
Claim 21
Dependent Claim
18 words
The method for producing a seal molded-in-place in accordance with claim 19, wherein said metallic substance is aluminum.
Claim 22
Dependent Claim
25 words
The method for producing a seal molded-in-place in accordance with claim 19, wherein said composite substance is selected from the group consisting of thermoset compositions.
Claim 23
Dependent Claim
30 words
The method for producing a seal molded-in-place in accordance with claim 21, wherein said thermoset compositions are selected from the group consisting of vinyl ester, polyester, phenolic, and polyamideimide compositions.
Claim 24
Dependent Claim
17 words
An article of manufacture comprising a substrate having a molded-in-place seal comprising a cured liquid reactive polymer.
Claim 25
Dependent Claim
17 words
An article of manufacture comprising a substrate having a molded-in-place seal comprising a cured liquid reactive polymer.
Claim 26
Dependent Claim
26 words
The article of manufacture of claim 23, wherein said substrate is a member selected from the group consisting of a metallic substance and a composite substance.
Claim 27
Dependent Claim
41 words
The article of manufacture of claim 24, wherein said substrate is in the form of an oil pan, rocker cover, timing chain cover, intake manifold, water pump housing, oil filter adapter, gear case cover, transmission differential cover, and oil cooler cover.
Claim 28
Dependent Claim
14 words
The article of manufacture of claim 25, wherein said substrate is an oil pan.
Claim 29
Dependent Claim
21 words
The article of manufacture of claim 24, wherein said metallic substances is selected from the group consisting of aluminum and steel.
Claim 30
Dependent Claim
13 words
The article of manufacture of claim 27, wherein said metallic substance is aluminum.
Claim 31
Dependent Claim
20 words
The article of manufacture of claim 27, wherein said composite substance is selected from the group consisting of thermoset compositions.
Claim 32
Dependent Claim
25 words
The article of manufacture of claim 29, wherein said thermoset compositions are selected from the group consisting of vinyl ester, polyester, phenolic, and polyamideimide compositions.
Claim 33
Dependent Claim
20 words
The article of manufacture in accordance with claim 23 wherein said liquid reactive polymer is a two-part liquid cure composition.
Claim 34
Dependent Claim
28 words
The article of manufacture of claim 31, wherein said two-part liquid cure composition includes a first part containing a catalyst and a second part containing a cross-linking agent.
Claim 35
Dependent Claim
26 words
The article of manufacture of claim 32, wherein said first part and said second part are present in a ratio of about 1:1 to about 10:1.
Claim 36
Dependent Claim
18 words
The article of manufacture of claim 33, wherein said two-part liquid cure composition is a platinum reactive system.
Claim 37
Dependent Claim
26 words
The article of manufacture of claim 32, wherein said two-part liquid cure composition is selected from the group consisting of silicone rubber compositions and organopolysiloxane compositions.
Claim 38
Dependent Claim
32 words
The article of manufacture of claim 35, wherein said two-part liquid cure composition is an organopolysiloxane composition comprising a diorganopolysiloxane oil, finely divided reinforcing silica, a structuring inhibitor, and a cross-linking agent.
Claim 39
Dependent Claim
19 words
The article of manufacture of claim 35, wherein said two-component liquid sealing material is a SiH-olefin platinum catalyzed composition.
Claim 40
Dependent Claim
20 words
The article of manufacture of claim 37, wherein said seal has a void volume within the range of about 4-17%.
Claim 41
Dependent Claim
29 words
The article of manufacture of claim 35, wherein said seal has a design compression within the range of about 15-30%; and a compression set of less than about 35%.
Claim 42
Dependent Claim
44 words
An article of manufacture comprising an oil pan having a molded-in-place gasket of a silicone rubber composition with a void volume in the range of about 15-30%, a design compression within the range of about 15-30%, and a compression set of less than 35%.
Claim 43
Dependent Claim
44 words
An article of manufacture comprising an oil pan having a molded-in-place gasket of a silicone rubber composition with a void volume in the range of about 15-30%, a design compression within the range of about 15-30%, and a compression set of less than 35%.
References Cited (Backward Citations)
No citation records indexed.
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