Precision integral articles

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6749779
APP PUB NO 20020055007A1
SERIAL NO

09952661

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This disclosure describes a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymerizable compositions comprised of a mixture of a reactive plasticizer and an initiator, optionally also including a dead polymer, which compositions are semi-solid-like and induce little shrinkage upon curing as a result of their partially polymerized nature prior to processing. The articles of the invention have a surface and an interior core, the composition of the surface material being distinct from the composition of the core material while at the same time the surface and the core are an integral, monolithic entity. In addition, the articles are dimensionally stable and exhibit high fidelity replication.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CLARITY POLYMERS, LLCEMERYVILLE, CA1

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hino, Toshiaki Berkeley, CA 18 140
Houston, Michael R Eagle River, WI 24 328
Soane, David S Piedmont, CA 188 4811

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MINNESOTA MINING AND MANUFACTURING COMPANY (3)
4510593 Information disk of grooved, metal-coated crosslinked polymeric layer 19 1982
4785064 Ultra-violet light curable compositions for abrasion resistant articles 22 1986
5449703 Method of making shaped dental articles via photoiniferter polymerization of the dental compositions 28 1994
 
MENICON CO., LTD. (1)
6265499 Process for producing a shaped product with a radical scavenger, polymerization initiator and a radical polymerizable monomer 6 1998
 
REINFORCED POLYMERS, INC. (1)
5747553 Low pressure acrylic molding composition with fiber reinforcement 42 1996
 
CONGOLEUM CORPORATION (1)
* 5830937 Coating and wearlayer compositions for surface coverings 44 1993
 
MDV TECHNOLOGIES, INC. (1)
5277911 Ablatable mask of polyoxyalkylene polymer and ionic polysaccharide gel for laser reprofiling of the cornea 52 1990
 
MORRISON INTERNATIONAL, INC. (1)
5938876 Method of making eyeglass lenses with add on segments 7 1998
 
Dentsply Research & Development Corp. (1)
4698373 Stable one part dental compositions employing ipn technology 42 1984
 
SUNSOFT CORPORATION (1)
4632773 Method of making a contact lens material which may be identified 27 1986
 
SUMITOMO CHEMICAL COMPANY, LIMITED (1)
6075094 Methyl methacrylic resin composition, molded article comprising the same and production of the molded article 4 1998
 
CIBA-GEIGY CORPORATION (1)
4837289 UV- and heat curable terminal polyvinyl functional macromers and polymers thereof 137 1988
 
HAKAWA RUBBER CO., LTD., (1)
5185234 Photosensitive flexographic printing plate composition 24 1991
 
Johnson & Johnson Vision Products, Inc. (2)
5779943 Molded polymeric object with wettable surface made from latent-hydrophilic monomers 55 1996
6241922 Method for manufacturing ophthalmic lenses 4 1999
 
CHRYSALIS DEVELOPMENT COMPANY, LLC (1)
6074579 Lens blanks and method of making a lens therefrom 67 1998
 
DEN-MAT CORPORATION (1)
4264489 Provisional crown-and-bridge resin containing tetrahydrofuryl methacrylate 14 1980
 
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) (2)
5914174 Lens or semi-finished blank comprising photochromic resin compositions 68 1996
5907386 Method of manufacturing a progressive optic 18 1997
 
FUJINON CORPORATION (1)
6270699 Production method for molding optical components 4 2000
 
SOANE TECHNOLOGIES, INC. (3)
5110514 Controlled casting of a shrinkable material 153 1989
5114632 Controlled casting of a shrinkable material 28 1990
5278243 High impact resistant macromolecular networks 19 1992
 
E. I. DU PONT DE NEMOURS AND COMPANY (2)
4323636 Photosensitive block copolymer composition and elements 122 1981
4981912 Shaped article of a crosslinked elastomer 16 1988
 
ESSILOR TECHNOLOGIES OF AMERICA, INC. (1)
5372755 Method for making ophthalmic lenses 39 1993
 
Kyowa Gas Chemical Industry Co., Ltd. (1)
5006415 Molded article of methacrylic resin 10 1988
 
BAYER AKTIENGESELLSCHAFT (1)
5147700 Molding compositions of low double refraction 3 1990
 
United States Steel Corporation (1)
4598123 Impact modified methyl methacrylate polymer 25 1985
 
UNION CARBIDE CORPORATION (1)
4524162 Low shrinking curable molding compositions containing a poly(acrylate) 21 1983
 
INVICTA CORPORATION (1)
5851328 Wafer deforming composite ophthalmic lens method 104 1997
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
6225406 Reactive extrusion method of making inverse phase blends of poly(ethylene oxide) and polyolefin 11 1999
 
The Yokohama Rubber Co., Ltd. (1)
6140450 Modified polysiloxanes, rubber compositions and tire tread rubber compositions containing the same, and reactive plasticizer 13 1998
 
PARAGON VISION SCIENCES, INC. (1)
5170192 Oxygen permeable bifocal contact lenses and their manufacture 33 1990
 
DRUG ROYALTY CORP. INC. (1)
5723541 Ocular lens composition and method of formation 12 1994
 
BASF AKTIENGESELLSCHAFT (2)
4430417 Photopolymerizable mixtures containing elastomeric block polymers and photocurable elements produced therefrom 58 1982
6111012 Polymer compositions for graft copolymer as well as mixtures thereof and thermoplastic compounds containing them 11 1997
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
SOUTHWEST RESEARCH INSTITUTE (1)
8606389 Method to construct and physically join building blocks into a near-net shaped part using an interfacial reaction-activation mechanism 1 2008
 
3M INNOVATIVE PROPERTIES COMPANY (5)
* 2006/0204,676 Polymerizable composition comprising low molecular weight organic component 29 2005
7463417 Optical articles from curable compositions 4 2006
* 2007/0191,506 CURABLE COMPOSITIONS FOR OPTICAL ARTICLES 16 2006
* 2007/0188,864 OPTICAL ARTICLES FROM CURABLE COMPOSITIONS 12 2006
* 7767728 Curable compositions for optical articles 8 2007
 
NOVARTIS AG (5)
* 2002/0153,623 Lens manufacturing process 10 2002
7845615 Plastic castings molds 1 2004
* 2005/0029,688 Plastic castings molds 8 2004
8398903 Process for the production of contact lenses using plastic castings molds 0 2010
* 2011/0057,337 PLASTIC CASTINGS MOLDS 3 2010
 
TRANSITIONS OPTICAL, INC. (4)
* 2006/0093,844 Photochromic coating compositions, methods of making coated articles and articles thereof 5 2005
8563212 Methods for producing photosensitive microparticles, non-aqueous dispersions thereof and articles prepared therewith 0 2010
8563213 Methods for producing photosensitive microparticles 4 2010
* 2010/0221,661 METHODS FOR PRODUCING PHOTOSENSITIVE MICROPARTICLES 1 2010
 
AMCOR RIGID PLASTICS USA, LLC (5)
7854876 Apparatus and methods for modular preform mold system 2 2007
* 2008/0290,561 APPARATUS AND METHODS FOR MODULAR PREFORM MOLD SYSTEM 4 2007
8543434 Systems and methods for mobile and/or modular manufacturing 5 2008
* 2011/0062,629 APPARATUS AND METHODS FOR MODULAR PREFORM MOLD SYSTEM 3 2010
9481058 Systems and methods for mobile and/or modular manufacturing 0 2013
 
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) (2)
* 7833442 Method for coating an ophthalmic lens within an injection molding machine 0 2005
* 7850879 Method for coating an ophthalmic lens within an injection molding machine 0 2006
 
JOBST LA DOUS (2)
* 7335702 Photochromic plastic object 10 2003
* 2004/0138,382 Photochromic plastic object 6 2003
 
Eco Vision Technologies, LLC (1)
8613613 Apparatus and methods for modular preform mold system 0 2010
* Cited By Examiner