Patent US3850474A successfully refreshed from Google Patents.
US3850474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive body components
Assignee: Individual
•
Filing: 1972-03-10
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Granted: 1974-11-26
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Expires: 1992-03-10
Abstract
Abstract Automotive body components having high impact strength and made of a composition comprising a blend of polystyrene-polybutadienepolystyrene and isotactic polypropylene and/or polyethylene, the components having elastic memories and adapted to resist aging and weather.
Inventors
- 👤 R Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:23
CPC Classifications
B; B62; B62D; B62D29/00; B62D29/04; B60; B60R; B60R19/00; B60R19/02; B60R19/03; Y; Y10; Y10S; Y10S264/00; Y10S264/83
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
83 words
A molded impact-resistant automotive body component comprising a first portion adapted to be located in the area of probable impact and an attachment portion and means integral with said first portion, said component having an elastic memory whereby it can be impacted and return to its initial position, said component adapted to resist aging and weather, said component being made of a composition comprising a blend of 50 percent by volume of isotactic polypropylene and 50 percent by volume polystyrene-polybutadiene-polystyrene block copolymer composition.
Claim 2
Dependent Claim
83 words
A molded impact-resistant automotive body component comprising a first portion adapted to be located in the area of probable impact and an attachment portion and means integral with said first portion, said component having an elastic memory whereby it can be impacted and return to its initial position, said component adapted to resist aging and weather, said component being made of a composition comprising a blend of 50 percent by volume of isotactic polypropylene and 50 percent by volume polystyrene-polybutadiene-polystyrene block copolymer composition.
Claim 3
Dependent Claim
14 words
A component as in claim 1 wherein said composition comprises about 25-100 PHR polystyrene.
Claim 4
Dependent Claim
44 words
A component as in claim 1 wherein said composition further comprises about 25-75 PHR of extender oil, about 25-100 PHR of polystyrene, about 15 PHR of fillers, one percent by weight of a nitrogen blowing agent and two percent by weight titanium dioxide pigment.
Claim 5
Dependent Claim
12 words
A component as in claim 1 wherein said component is a bumper.
Claim 6
Dependent Claim
33 words
A component as in claim 4 wherein said bumper is shaped so as to merge with the fenders and hood components of an automobile to provide a smooth continuous surface between said components.
Claim 7
Dependent Claim
12 words
A component as in claim 1 wherein said component is a fender.
Claim 8
Dependent Claim
100 words
A molded impact-resistant automotive body component comprising a first portion adapted to be located in the area of probable automotive impact and an attachment portion and means integral with said first portion, said component having an elastic memory whereby it may be impacted by another object or automobile and return to its initial position, said component adapted to resist aging and weather and being made of a composition comprising a blend of about 10 percent by volume of poly-mono-alpha-alkenyl arenes-conjugated dienes block copolymer and about 45 percent by volume of isotactic polypropylene and about 45 percent by volume of polyethylene.
Claim 9
Dependent Claim
100 words
A molded impact-resistant automotive body component comprising a first portion adapted to be located in the area of probable automotive impact and an attachment portion and means integral with said first portion, said component having an elastic memory whereby it may be impacted by another object or automobile and return to its initial position, said component adapted to resist aging and weather and being made of a composition comprising a blend of about 10 percent by volume of poly-mono-alpha-alkenyl arenes-conjugated dienes block copolymer and about 45 percent by volume of isotactic polypropylene and about 45 percent by volume of polyethylene.
Claim 10
Dependent Claim
15 words
A component as in claim 7 wherein said composition also includes a compatible extender oil.
Claim 11
Dependent Claim
14 words
A component as in claim 7 wherein said polyethylene is a high density polyethylene.
Claim 12
Dependent Claim
83 words
A cured molded impact-resistant automobile body component comprising a first portion adapted to be located in the area of probable impact on an automobile and an attachment portion and means integral with said first portion, said component having an elastic memory whereupon it can be impacted and return to its initial position, said component adapted to resist aging and weather and being made of a composition comprising a blend of isotactic polypropylene, polyethylene and from 10-50 percent by volume polystyrene-polybutadiene-polystyrene block copolymer composition.
Claim 13
Dependent Claim
83 words
A cured molded impact-resistant automobile body component comprising a first portion adapted to be located in the area of probable impact on an automobile and an attachment portion and means integral with said first portion, said component having an elastic memory whereupon it can be impacted and return to its initial position, said component adapted to resist aging and weather and being made of a composition comprising a blend of isotactic polypropylene, polyethylene and from 10-50 percent by volume polystyrene-polybutadiene-polystyrene block copolymer composition.
Claim 14
Dependent Claim
15 words
A component as in claim 10 wherein said composition further comprises about 25-100 PHR polystyrene.
Claim 15
Dependent Claim
24 words
A component as in claim 10 wherein said component is a bumper and said attachment means comprises two brackets integral with said attachment area.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |