BE843908A - MANUFACTURING OF LIGHT DIFFRACTION PLATES WITH THE USE OF SHEETS OF THERMOPLASTIC MATERIALS LOADED WITH GLASS FIBERS - Google Patents

MANUFACTURING OF LIGHT DIFFRACTION PLATES WITH THE USE OF SHEETS OF THERMOPLASTIC MATERIALS LOADED WITH GLASS FIBERS

Info

Publication number: BE843908A
Authority: BE; Belgium
Prior art keywords: sheets; manufacturing; glass fibers; thermoplastic materials; light diffraction
Prior art date: 1975-07-12

Application number

BE168735A

Other languages

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1975-07-12

Filing date

1976-07-08

Publication date

1977-01-10

1976-07-08 Application filed filed Critical

1977-01-10 Publication of BE843908A publication Critical patent/BE843908A/en

Classifications

- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00605—Production of reflex reflectors

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Textile Engineering (AREA)
Composite Materials (AREA)
Manufacturing & Machinery (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Health & Medical Sciences (AREA)
Chemical & Material Sciences (AREA)
Ophthalmology & Optometry (AREA)
Compositions Of Macromolecular Compounds (AREA)
Optical Elements Other Than Lenses (AREA)
Reinforced Plastic Materials (AREA)
Pens And Brushes (AREA)
Braking Arrangements (AREA)
Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Extrusion Moulding Of Plastics Or The Like (AREA)

BE168735A 1975-07-12 1976-07-08 MANUFACTURING OF LIGHT DIFFRACTION PLATES WITH THE USE OF SHEETS OF THERMOPLASTIC MATERIALS LOADED WITH GLASS FIBERS BE843908A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2531240A DE2531240C2 (en)	1975-07-12	1975-07-12	Process for the production of diffusing light disks

Publications (1)

Publication Number	Publication Date
BE843908A true BE843908A (en)	1977-01-10

Family

ID=5951383

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE168735A BE843908A (en)	1975-07-12	1976-07-08	MANUFACTURING OF LIGHT DIFFRACTION PLATES WITH THE USE OF SHEETS OF THERMOPLASTIC MATERIALS LOADED WITH GLASS FIBERS

Country Status (13)

Country	Link
JP (1)	JPS5211046A (en)
AT (1)	AT354905B (en)
BE (1)	BE843908A (en)
CA (1)	CA1068034A (en)
CH (1)	CH602314A5 (en)
DE (1)	DE2531240C2 (en)
DK (1)	DK146776C (en)
FR (1)	FR2318020A1 (en)
GB (1)	GB1515439A (en)
IT (1)	IT1062602B (en)
NL (1)	NL185068C (en)
NO (1)	NO144623C (en)
SE (1)	SE7607826L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2721885C3 (en) *	1977-05-14	1981-12-24	Bayer Ag, 5090 Leverkusen	Manufacture of lens diffusers
GB1585338A (en) *	1977-05-14	1981-02-25	Bayer Ag	Use of sheets of thermoplastic filled with glass beads for the manufacture of light diffuser plates
JPS57133149A (en) *	1981-02-12	1982-08-17	Idemitsu Kosan Co Ltd	Polycarbonate resin composition
NL8300817A (en) *	1983-03-07	1984-10-01	Philips Nv	PROJECTION SCREEN.
DE4424106A1 (en)	1994-07-08	1996-01-11	Bayer Ag	Laminates
US6550938B2 (en) *	2000-02-09	2003-04-22	Lexalite International Corporation	Lighting fixture employing a partially reflective partially transmittive polymeric reflector
DE102007044146A1 (en)	2007-09-12	2009-03-19	Bayer Materialscience Ag	Thermoplastic with metal identification plate
DE102008051409A1 (en)	2008-10-11	2010-04-15	Bayer Materialscience Ag	security element

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1245938B (en) *	1963-11-30	1967-08-03
US3291868A (en) *	1964-07-20	1966-12-13	Owens Corning Fiberglass Corp	Production of polarizing elements
DE1544920A1 (en) *	1965-10-08	1969-07-24	Bayer Ag	Translucent plastics for lighting purposes
DE1729529A1 (en) *	1968-02-23	1972-02-10	Bayer Ag	Process for the production of glass fiber reinforced thermoplastics
DE2118597A1 (en) *	1970-04-21	1971-11-11	Joergensen, Knud, Frederikshavn (Dänemark); r	Translucent material

1975
- 1975-07-12 DE DE2531240A patent/DE2531240C2/en not_active Expired
1976
- 1976-06-21 CA CA255,344A patent/CA1068034A/en not_active Expired
- 1976-06-29 NO NO762255A patent/NO144623C/en unknown
- 1976-07-07 GB GB28246/76A patent/GB1515439A/en not_active Expired
- 1976-07-08 BE BE168735A patent/BE843908A/en not_active IP Right Cessation
- 1976-07-08 SE SE7607826A patent/SE7607826L/en not_active Application Discontinuation
- 1976-07-09 DK DK313376A patent/DK146776C/en active
- 1976-07-09 NL NLAANVRAGE7607643,A patent/NL185068C/en not_active IP Right Cessation
- 1976-07-09 AT AT504076A patent/AT354905B/en not_active IP Right Cessation
- 1976-07-09 CH CH883676A patent/CH602314A5/xx not_active IP Right Cessation
- 1976-07-09 IT IT50346/76A patent/IT1062602B/en active
- 1976-07-09 JP JP51081071A patent/JPS5211046A/en active Granted
- 1976-07-12 FR FR7621319A patent/FR2318020A1/en active Granted

Also Published As

Publication number	Publication date
SE7607826L (en)	1977-01-13
NL185068C (en)	1990-01-16
DK146776B (en)	1984-01-02
CA1068034A (en)	1979-12-11
DK146776C (en)	1984-07-16
JPS5211046A (en)	1977-01-27
DE2531240C2 (en)	1984-07-26
DE2531240A1 (en)	1977-01-27
DK313376A (en)	1977-01-13
AT354905B (en)	1979-02-11
NL7607643A (en)	1977-01-14
NL185068B (en)	1989-08-16
NO762255L (en)	1977-01-13
CH602314A5 (en)	1978-07-31
JPS5629241B2 (en)	1981-07-07
NO144623C (en)	1981-10-07
IT1062602B (en)	1984-10-20
ATA504076A (en)	1979-06-15
FR2318020A1 (en)	1977-02-11
NO144623B (en)	1981-06-29
GB1515439A (en)	1978-06-21
FR2318020B1 (en)	1982-05-21

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BE867022A (en)	1978-11-13	USE OF PLASTIC SHEETS LOADED WITH GLASS BEADS, FOR THE MANUFACTURE OF LIGHT DISTRIBUTION PLATES
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Legal Events

Date	Code	Title	Description
1996-01-01	RE20	Patent expired	Owner name: BAYER A.G. Effective date: 19960708

Date

Code

Title

Description

1996-01-01

RE20

Patent expired

Owner name: BAYER A.G.

Effective date: 19960708