Claims
- 1. An optically transparent article exhibiting a frosted appearance comprising a mixture of polyvinyl chloride and crosslinked polyvinyl chloride wherein said crosslinked polyvinyl chloride has a complex viscosity of between 0.9.times.10.sup.5 and less than 2.55.times.10.sup.6 poise, said polyvinyl chloride is present at a level from about 3 to about 97 weight parts and said crosslinked polyvinyl chloride is present at a level of from about 97 to about 3 weight parts, wherein the total weight parts of polyvinyl chloride and crosslinked polyvinyl chloride is equal to 100, and wherein said article has a haze value of greater than about 50% measured in the frosted state, and a light transmission of greater than about 60% measured on said article after said frosting has been eliminated by compression molding under high pressure and cooling under pressure.
- 2. An article of claim 1 wherein said crosslinked polyvinyl chloride has a complex viscosity between 2.2.times.10.sup.5 and 1.4.times.10.sup.6.
- 3. An article of claim 2 wherein said crosslinked polyvinyl chloride is present at from about 10 to about 20 weight parts per 100 total weight parts polyvinyl chloride.
- 4. An article of claim 3 wherein said crosslinked polyvinyl chloride has a tan .delta. of from about 0.1 to about 0.5.
- 5. An article of claim 1 selected from the group consisting of bottles, sheets, draperies, louvers, tubing, films, and window panes.
- 6. An article of claim 5 wherein said article is a frosted bottle.
- 7. An article of claim 6 wherein said bottle is a tinted bottle.
- 8. An article of claim 1 further comprising at least 10 weight parts plasticizer per 100 total parts polyvinyl chloride.
- 9. An article of claim 1 comprising from about 60 to about 97 weight parts of polyvinyl chloride and from about 3 to about 40 weight parts of crosslinked polyvinyl chloride, wherein the total weight parts of crosslinked polyvinyl chloride and polyvinyl chloride is equal to 100.
- 10. An article of claim 1 wherein said polyvinyl chloride has an inherent viscosity of from about 0.4 to 2.5 as measured according to ASTM procedure D-1243.
- 11. An article of claim 1 wherein said polyvinyl chloride has an inherent viscosity of from 0.4 to less than 1.4 as measured according to ASTM procedure D-1243.
- 12. An optically transparent frosted article formed from a composition comprising a polymer mixture, said mixture comprising a first polymer selected from the group consisting of cellulose acetate, cellulose acetate butyrate, ionomer resin, polycarbonate, polymethyl pentene, polysulfone, polystyrene, styrene butadiene thermoplastic elastomer, rigid polyvinyl chloride, semi-rigid polyvinyl chloride, flexible polyvinyl chloride, polyester, polyarylate and styrene acrylonitrile copolymer and a second polymer which is a crosslinked polymer miscible with said first polymer, and wherein said first polymer and said second polymer have different viscoelastic properties; and said composition further comprising less than 10 parts by weight plasticizer per 100 parts by total weight of polymer, and wherein the article has a haze value of greater than about 50%, and a light transmission of greater than about 60%.
- 13. A composition of claim 12 wherein said first polymer is a lighly crosslinked polyvinyl chloride having a tan .delta. greater than about 0.7 and said second polymer is a heavily crosslinked polyvinyl chloride having a tan .delta. less than about 0.5.
- 14. A composition of claim 13 wherein said lightly crosslinked polyvinyl chloride has a tan .delta. greater than about 0.9 and said heavily crosslinked polyvinyl chloride has a tan .delta. less than about 0.4.
- 15. A composition of claim 12 wherein said first polymer is a polyvinyl chloride having an inherent viscosity less than about 0.8 and wherein said second polymer is a polyvinyl chloride having an inherent viscosity greater than about 1.4.
- 16. A composition of claim 8 wherein said plasticizer is present at a level greater than about 40 weight parts.
- 17. A composition of claim 12 wherein said first polymer and said second polymer when mixed together have similar optical properties.
- 18. A process for producing an optically transparent frosted article comprising forming a polymeric composition, said polymeric composition comprises a first polymer and a second polymer, wherein said first polymer and said second polymer have different viscoelastic properties.
- 19. A process of claim 18 wherein, said polymeric composition comprises polyvinyl chloride and crosslinked polyvinyl chloride wherein said crosslinked polyvinyl chloride has a complex viscosity of between 0.9.times.10.sup.5 and less than 2.55.times.10.sup.6 poise, and less than 10 parts by weight plasticizer per 100 total parts by weight of polyvinyl chloride, and wherein said process yields an article having a haze value of greater than about 50% measured in the frosted state and a light transmission of greater than about 60% measured on said article after said frosting has been eliminated by compression molding under high pressure and cooling under pressure.
- 20. A process of claim 18 wherein said first polymer and said second polymer have similar optical properties.
- 21. A process of claim 19 wherein said crosslinked polyvinyl chloride is present at a level of from about 3 to about 40 weight parts and wherein the total weight parts of polyvinyl chloride and crosslinked polyvinyl chloride is equal to 100.
- 22. A process of claim 19 wherein said crosslinked polyvinyl chloride has a tan .delta. of from about 0.1 to about 0.5.
- 23. A process of claim 19 wherein the level of crosslinked polyvinyl chloride is from about 10 to about 20 weight parts.
- 24. A process of claim 22 wherein said crosslinked polyvinyl chloride has a tan .delta. of from about 0.2 to about 0.4.
- 25. A process of claim 19 wherein said polyvinyl chloride and said crosslinked polyvinyl chloride are mixed together at a temperature less than 200.degree. C. prior to forming.
- 26. A process of claim 18 wherein said article is formed by a process selected from the group consisting of extrusion blow molding, injection blow molding, extrusion, injection molding, thermoforming, pultrusion and calendering.
- 27. A process of claim 18 wherein said first polymer is selected from the group consisting of polymethyl methacrylate, cellulose acetate, cellulose acetate butyrate, ionomer resin, polycarbonate, polymethyl pentene, polysulfone, polystyrene, styrene butadiene thermoplastic elastomer, rigid polyvinyl chloride, semi-rigid polyvinyl chloride, flexible polyvinyl chloride, polyester, polyarylate, styrene acrylonitrile copolymer, ethylene ethyl acrylate copolymer, silicone and ethylene methylacrylate copolymer and said second polymer is a crosslinked polymer miscible with said first polymer.
- 28. An optically tranparent frosted polymeric article comprising a polymer mixture comprising a first polymeric component and a second polymeric component, wherein said first polymeric component and said second polymeric component have different viscoelastic properties, wherein said article is formed by calendaring, extruding, blow molding, injection blow molding, extrusion blow molding in a mold having a smooth surface.
- 29. An article of claim 28 wherein said first polymeric component and said second polymeric component have similar optical properties.
- 30. An article of claim 29 wherein said first polymeric component is selected from the group consisting of polymethyl methacrylate, cellulose acetate, cellulose acetate butyrate, ionomer resin, polycarbonate, polymethyl pentene, polysulfone, polystyrene, styrene butadiene thermoplastic elastomer, rigid polyvinyl chloride, semi-rigid polyvinyl chloride, flexible polyvinyl chloride, polyester, polyarylate, styrene acrylonitrile copolymer, ethylene ethyl acrylate copolymer, silicone and ethylene methylacrylate copolymer and said second polymeric component is a crosslinked polymer miscible with said first polymer.
- 31. An article of claim 28 selected from the group consisting of bottles, sheets, draperies, tubing, louvers, films and window panes.
- 32. An article of claim 31 wherein said article is a frosted bottle.
Parent Case Info
This is a continuation-in-part of application Ser. No. 07/449,487 filed on Dec. 11, 1989 now abandoned, which is a continuation of application Ser. No. 07/099,818 filed on Sep. 27, 1987, now abandoned.
Foreign Referenced Citations (1)
Number |
Date |
Country |
0104433 |
Aug 1983 |
EPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
99818 |
Sep 1987 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
449487 |
Dec 1989 |
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