Composite layered sheet of film for refrigerators
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0565065
(2000-05-05)
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우선권정보 |
DE-0020916 (1999-05-06) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
10 |
초록
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A composite layered sheet or composite layered film made from thermoplastics or thermoplastic mixtures comprises at least one substrate layer A) and at least one functional layer B) which comprises one or more blowing agents or nucleating agents, where the functional layer B) is thinner than the sub
A composite layered sheet or composite layered film made from thermoplastics or thermoplastic mixtures comprises at least one substrate layer A) and at least one functional layer B) which comprises one or more blowing agents or nucleating agents, where the functional layer B) is thinner than the substrate layer A). A process for producing the sheet or film and a process for producing thermally insulating moldings are described.
대표청구항
▼
1. A composite layered sheet or composite layered film consisting essentially of glass-clear polystyrene, impact-modified polystyrene, styrene copolymers or mixtures thereof, comprising a functional layer B) on a substrate layer A), wherein the functional layer B) comprises one or more blowing agent
1. A composite layered sheet or composite layered film consisting essentially of glass-clear polystyrene, impact-modified polystyrene, styrene copolymers or mixtures thereof, comprising a functional layer B) on a substrate layer A), wherein the functional layer B) comprises one or more blowing agents or nucleating agents and is thinner than the substrate, layer A) wherein the substrate layer A) has a thickness of from 0.1 to 50 mm and the functional layer B) has a thickness of from 0.04 to 2 mm. 2. A composite layered sheet or composite layered film as claimed in claim 1, wherein the substrate layer A) is composed of an environmental-stress-cracking-resistant, impact-modified polystyrene. 3. A composite layered sheet or composite layered film as claimed in claim 1, wherein the composite layered sheet or film has a total thickness and the functional layer B) has a thickness not more than 40% of the total thickness of the composite layered sheet or film. 4. A composite layered sheet or composite layered film as claimed in claim 1, wherein the functional layer B) comprises sodium bicarbonate, citric acid, pentane, cyclopentane, silicon dioxide, titanium dioxide, barium sulfate, barium carbonate, magnesium oxide, magnesium carbonate, zinc oxide, talc, chalk, azodicarbonamide or mixtures of these. 5. A composite layered sheet or composite layered film as claimed in claim 1, wherein the functional layer B) comprises an amount of from 0.3 to 3% by weight of the blowing agent or nucleating agent, based on the functional layer B). 6. A composite layered sheet or composite layered film, which is the product of the process of applying a gloss outer layer C) to the substrate layer A) of the composite layered sheet or composite layered film as claimed in claim 1. 7. A thermally insulating molding, which is the product of the process of molding the composite layered sheet or composite layered film as claimed in claim 1. 8. A thermally insulating molding, which is the product of the process of applying a polyurethane foam to the functional layer B) of the composite layered sheet or composite layered film of claim 1. 9. A composite layered sheet or composite layered film made from thermoplastics or thermoplastic mixtures, consisting essentially of at least one substrate layer A) and at least one functional layer B) which comprises one or more blowing agents or nucleating agents, wherein the functional layer B) is thinner than the substrate layer A) and the substrate layer A) and the functional layer B) comprise polystyrene, and wherein said functional layer B) forms an open-celled foam structure and the substrate layer A) has a thickness of from 0.1 to 50 mm and the functional layer B) has a thickness of from 0.04 to 2 mm. 10. A composite layered sheet or composite layered film as claimed in claim 9, wherein said at least one functional layer B) comprises one or more blowing agents and nucleating agents. 11. A thermally insulated molding which is the product of the process of molding a composite layered sheet or composite layered film as recited in claim 9. 12. A thermally insulated molding which is the product of applying a polyurethane foam to the functional layer B) of the composite layered sheet or composite layered film as claimed in claim 9.
이 특허에 인용된 특허 (10)
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Brands Jan (Terneuzen MI NLX) Swartzmiller Steven B. (Midland MI) Grnbauer Henri J. M. (Oostburg NLX) van Duin Kees-Jeen (Terneuzen NLX), Barrier films for preventing solvent attack on plastic resins.
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Sheu Hrong-Roang, Barrier layer for use in refrigerator cabinets.
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Karabedian ; James A., Container with improved heat-shrunk cellular sleeve.
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Chen John C. (Hockessin DE) Diandreth Anita N. (Orange TX), Hydrohalocarbon resistant refrigerator liners.
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Schulz Thomas G. ; Danner Mark C. ; Cahill Glenda J. ; Tung Harvey C., Multilayer protective film.
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Blackwelder Maurice W. ; DiBello Louis M., Plastic sheet base for packaging bacon.
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Brands Jan (Terneuzen NLX) Grnbauer Henri J. M. (Oostburg NLX) van Duin Kees-Jeen (Terneuzen NLX), Polyolefin barrier films for preventing solvent attack on plastic resins.
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Hauck Steven M. (Piscataway NJ) Viola Jeffrey P. (Manalapan NJ), Refrigerator liner structures.
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Holtrop James S. (South Windsor CT) Maurer Richard P. (Wilbraham MA), Thermoformable laminate structure with improved acoustical absorption.
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Jacoby Philip (Naperville IL) Wu Jesse (Doraville GA) Heiden Mark (Sioux Falls SD), Thermoformable polypropylene-based sheet.
이 특허를 인용한 특허 (8)
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Chan, Chiu Y.; Free, Sharon A.; Land, Joshua D.; Albero, Marc J.; Patel, Jagdish; Burke, III, William Patrick, Flame laminable hydrophilic ester polyurethane foams.
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Rynd, Joseph P.; Loh, Roland R.; Briendel, Raymond M., Method of forming thermoplastic foams using nano-particles to control cell morphology.
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Loh, Roland R.; Polasky, Mark E.; Delaviz, Yadollah; Lee, L. James; Cao, Xia; Shen, Jiong; Patel, Bharat, Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance.
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Korkmaz, Erdem, Refrigerator.
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Wagner,Daniel; Weink철tz,Peter; Morgenstern,Herbert; Renner,Hans J체rgen, Shiny, impact-resistant polystyrol which is resistant to tension cracks.
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Phillips, Patrick, Thermally-enhanced HVAC constructions.
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Breindel, Raymond; Loh, Roland; Rynd, Joseph P.; Delaviz, Yadolah; Polasky, Mark E., Thermoplastic foams and method of forming them using nano-graphite.
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Breindel, Raymond; Loh, Roland; Rynd, Joseph P.; Delaviz, Yadollah; Polasky, Mark E., Thermoplastic foams and method of forming them using nano-graphite.
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