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31. 发明专利

DK1453900T3 未知
公开(公告)号：DK1453900T3
公开(公告)日：2009-03-30
申请号：DK02802979
申请日：2002-10-16
申请人： EVONIK ROEHM GMBH
发明人： ITTMANN GUENTHER , SCHMIDT JANN , LICHTENSTEIN HANS , GROOTHUES HERBERT
IPC分类号： C08K3/30 , G02B6/00 , C08K7/18 , C08L33/12 , F21V8/00 , G02B1/04
摘要： The present invention relates to a light-guide body, which has at least one light-entry surface and at least one light-exit surface, the ratio of the light-exit surface area to the light-entry surface area being at least 4, comprising at least one light-guiding layer with a thickness of at least 2 mm, characterized in that the light-guiding layer comprises at least 60% by weight, expressed in terms of the weight of the light-guiding layer, of polymethyl methacrylate and from 0.001 to 0.08% by weight, expressed in terms of the weight of the light-guiding layer, of spherical barium sulphate particles with an average diameter in the range of from 0.3 to 20 mum.

32. 发明专利

PT1453900E CONDUTOR DE LUZ E PROCESSO PARA O SEU FABRICO 未知
公开(公告)号：PT1453900E
公开(公告)日：2009-02-27
申请号：PT02802979
申请日：2002-10-16
申请人： EVONIK ROEHM GMBH
发明人： SCHMIDT JANN , ITTMANN GUENTHER , GROOTHUES HERBERT , LICHTENSTEIN HANS
IPC分类号： C08K3/30 , C08K3/00 , G02B6/00 , C08K7/00 , C08K7/18 , C08L33/00 , C08L33/12 , F21V8/00 , G02B1/04

33. 发明专利

DE50213067D1 未知
公开(公告)号：DE50213067D1
公开(公告)日：2009-01-08
申请号：DE50213067
申请日：2002-10-16
申请人： EVONIK ROEHM GMBH
发明人： SCHMIDT JANN , ITTMANN GUENTHER , LICHTENSTEIN HANS , GROOTHUES HERBERT
IPC分类号： C08K3/30 , G02B6/00 , C08K7/18 , C08L33/12 , F21V8/00 , G02B1/04
摘要： The present invention relates to a light-guide body, which has at least one light-entry surface and at least one light-exit surface, the ratio of the light-exit surface area to the light-entry surface area being at least 4, comprising at least one light-guiding layer with a thickness of at least 2 mm, characterized in that the light-guiding layer comprises at least 60% by weight, expressed in terms of the weight of the light-guiding layer, of polymethyl methacrylate and from 0.001 to 0.08% by weight, expressed in terms of the weight of the light-guiding layer, of spherical barium sulphate particles with an average diameter in the range of from 0.3 to 20 mum.

34. 发明专利

AT415446T 未知
公开(公告)号：AT415446T
公开(公告)日：2008-12-15
申请号：AT02802979
申请日：2002-10-16
申请人： EVONIK ROEHM GMBH
发明人： SCHMIDT JANN , ITTMANN GUENTHER , LICHTENSTEIN HANS , GROOTHUES HERBERT
IPC分类号： C08K3/30 , G02B6/00 , C08K7/18 , C08L33/12 , F21V8/00 , G02B1/04
摘要： The present invention relates to a light-guide body, which has at least one light-entry surface and at least one light-exit surface, the ratio of the light-exit surface area to the light-entry surface area being at least 4, comprising at least one light-guiding layer with a thickness of at least 2 mm, characterized in that the light-guiding layer comprises at least 60% by weight, expressed in terms of the weight of the light-guiding layer, of polymethyl methacrylate and from 0.001 to 0.08% by weight, expressed in terms of the weight of the light-guiding layer, of spherical barium sulphate particles with an average diameter in the range of from 0.3 to 20 mum.

35. 发明专利

DE102006011820A1 未知
公开(公告)号：DE102006011820A1
公开(公告)日：2007-09-20
申请号：DE102006011820
申请日：2006-03-13
申请人： ROEHM GMBH
发明人： THEIL ALEXANDER , GAUL HEINRICH , ORTLEPP BERNHARD , SCHARNKE WOLFGANG , SCHMIDT JANN
IPC分类号： E04F15/10 , A47K3/02
摘要： PLEXIGLAS(R) is suitable-when provided with a structured and microrough surface -as an anti-slip covering for sanitary elements.

36. 发明专利

AT369581T 未知
公开(公告)号：AT369581T
公开(公告)日：2007-08-15
申请号：AT03755565
申请日：2003-09-27
申请人： ROEHM GMBH
发明人： SCHMIDT JANN , GROOTHUES HERBERT , SCHARNKE WOLFGANG , LORENZ HANS , HAERING HELMUT , DICKHAUT-BAYER GUENTHER , PARUSEL MARKUS
IPC分类号： G03B1/00 , G03B21/62 , B32B27/20
摘要： A back projection screen including at least one light scattering polymethyl methacrylate (PMM) layer of thickness 0.05-4 mm having spherical particles of particles size 5-35 micron in a concentration of 2-60 wt.% on the total weight of the PMM layer, the particles having a refractive index difference compared with the PMM matrix of 0.02-0.2 is new. A back projection screen including at least one light scattering polymethyl methacrylate (PMM) layer of thickness 0.05-4 mm having spherical particles of particles size 5-35 micron in a concentration of 2-60 wt.% on the total weight of the PMM layer, the particles having a refractive index difference compared with the PMM matrix of 0.02-0.2, where the concentration of spherical particles cp, the thickness of the light scattering PMM layer ds, and the particle size of the spherical plastics particles Dp are selected so that the cp.ds/Dp3 ratio is 0.0015-0.015 wt.%.mm/micron3 and the ratio of the mean surface roughness of the polymethyl methacrylate layer Ra to the particle size of the spherical plastics layer dscp/ds = 0.05-0.4. An Independent claim is included for a process for preparing the screen by extrusion of a molding composition.

37. 发明专利

CA2629595A1 PRISMATIC FILMS FOR OPTICAL APPLICATIONS 未知
公开(公告)号：CA2629595A1
公开(公告)日：2007-06-28
申请号：CA2629595
申请日：2006-10-02
申请人： EVONIK ROEHM GMBH
发明人： SCHMIDT JANN , LASCHITSCH ALEXANDER , KROHMER CHRISTOPH , HARING HELMUT , BIRTH DETLEF , ROTH CHRISTIAN
IPC分类号： B29C59/04 , B29C47/04 , B29C59/06
摘要： The invention relates to co-extruded films of a prismatic structure, a method for producing co-extruded films of a prismatic structure and applications.

38. 发明专利

DK1390935T3 未知
公开(公告)号：DK1390935T3
公开(公告)日：2006-05-15
申请号：DK02747279
申请日：2002-04-13
申请人： ROEHM GMBH
发明人： BENZ VOLKER , BESEV IBRAHIM , SCHMIDT JANN , ITTMANN GUENTHER
IPC分类号： G09F13/02 , F21V8/00

39. 发明专利

MXPA06001067A HOJA DIFUSORA PARA APLICACIONES DE LCD, PROCESO PARA SU PRODUCCION Y USO. 未知
公开(公告)号：MXPA06001067A
公开(公告)日：2006-04-11
申请号：MXPA06001067
申请日：2004-05-12
申请人： ROEHM GMBH
发明人： SCHMIDT JANN
IPC分类号： G02B5/02 , G02F1/1335 , G02F1/13357 , G03B21/62
摘要： La presente invencion se relaciona con hojas difusoras para aplicaciones de LCD que abarcan por lo menos una capa de metacrilato de polimetilo dispersora de luz que comprende una matriz de metacrilato de polimetilo y tambien de 0.5 a 59.5% por peso, sobre la base del peso de la capa de metacrilato de polimetilo dispersora de luz, de particulas dispersoras esfericas (A) cuyo tamano medio V50 esta en el rango de 0.1 a 40 ??m, y cuyo indice refractivo difiere del de la matriz de metacrilato de polimetilo por un valor en el rango de 0.02 a 0.2, y de 0.5 a 59.5% por peso, sobre la base del peso de la capa de metacrilato de polimetilo dispersor de luz, de las particulas esfericas (B) cuyo tamano medio V50 esta en el rango de 10 a 150 ??m y cuyo indice refractivo difiere del de la matriz de metacrilato de polimetilo por un valor en el rango de 0 a 0.3, donde la concentracion total de las particulas dispersoras esfericas (A) y las particulas (B) esta en un rango de 1 a 60% por peso, sobre la base del peso de la capa de metacrilato de polimetilo dispersora de luz, y las particulas dispersoras esfericas (A) y las particulas esfericas (B) tienen un tamano de particula media V50 diferente, donde el factor de transmision de las hojas difusoras esta en el rango de 20 a 70% y su potencia de dispersion es superior a 0.3, donde la relacion del cuadrado del promedio de la aspereza de la superficie de la capa de metacrilato de polimetilo Rz a la tercera potencia del tamano de las particulas esfericas (B) Rz2/DPB3 esta en el rango de 0.0002 a 0.1300 ??m-1.

40. 发明专利

DE102004045621A1 未知
公开(公告)号：DE102004045621A1
公开(公告)日：2006-04-06
申请号：DE102004045621
申请日：2004-09-17
申请人： ROEHM GMBH
发明人： THEIL ALEXANDER , SCHMIDT JANN , SCHARNKE WOLFGANG , ORTLEPP BERNHARD , GAUL HEINRICH
IPC分类号： C08J5/16 , A47G27/02 , D06N7/00

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