GB1585338A - Use of sheets of thermoplastic filled with glass beads for the manufacture of light diffuser plates - Google Patents
Use of sheets of thermoplastic filled with glass beads for the manufacture of light diffuser plates Download PDFInfo
- Publication number
- GB1585338A GB1585338A GB18675/78A GB1867578A GB1585338A GB 1585338 A GB1585338 A GB 1585338A GB 18675/78 A GB18675/78 A GB 18675/78A GB 1867578 A GB1867578 A GB 1867578A GB 1585338 A GB1585338 A GB 1585338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- light diffuser
- thermoplastics
- glass beads
- manufacture
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000011521 glass Substances 0.000 title claims abstract description 44
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 41
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 41
- 239000011324 bead Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000155 melt Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 28
- 239000004417 polycarbonate Substances 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 229920000058 polyacrylate Polymers 0.000 claims description 5
- 229920002678 cellulose Polymers 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 239000002318 adhesion promoter Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000005507 spraying Methods 0.000 abstract 1
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004304 visual acuity Effects 0.000 description 3
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- GPAPPPVRLPGFEQ-UHFFFAOYSA-N 4,4'-dichlorodiphenyl sulfone Chemical compound C1=CC(Cl)=CC=C1S(=O)(=O)C1=CC=C(Cl)C=C1 GPAPPPVRLPGFEQ-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 229920001283 Polyalkylene terephthalate Polymers 0.000 description 1
- FGUJWQZQKHUJMW-UHFFFAOYSA-N [AlH3].[B] Chemical compound [AlH3].[B] FGUJWQZQKHUJMW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- -1 for example Polymers 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920006352 transparent thermoplastic Polymers 0.000 description 1
Classifications
-
- 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
- B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
- B29C70/585—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres incorporation of light reflecting filler, e.g. lamellae to obtain pearlescent effet
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/62—Translucent screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
- B29K2709/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0031—Refractive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772721885 DE2721885C3 (de) | 1977-05-14 | 1977-05-14 | Herstellung von Streulichtscheiben |
| DE19772755088 DE2755088A1 (de) | 1977-12-10 | 1977-12-10 | Verwendung von folien aus glaskugel- gefuellten thermoplasten zur herstellung von streulichtscheiben |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1585338A true GB1585338A (en) | 1981-02-25 |
Family
ID=25772023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18675/78A Expired GB1585338A (en) | 1977-05-14 | 1978-05-10 | Use of sheets of thermoplastic filled with glass beads for the manufacture of light diffuser plates |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS53141642A (xx) |
| CH (1) | CH635440A5 (xx) |
| DK (1) | DK209878A (xx) |
| FR (1) | FR2390265B1 (xx) |
| GB (1) | GB1585338A (xx) |
| IT (1) | IT1103150B (xx) |
| NL (1) | NL7805193A (xx) |
| SE (1) | SE7805406L (xx) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997008252A1 (en) * | 1995-08-30 | 1997-03-06 | Minnesota Mining And Manufacturing Company | Back light reflection sheet for liquid crystal |
| US5706134A (en) * | 1919-06-22 | 1998-01-06 | Keiwa Shoko Kabushiki Kaisha | Light-diffusing sheet member |
| WO2013020982A1 (de) | 2011-08-08 | 2013-02-14 | Bayer Intellectual Property Gmbh | Gefüllte polymerzusammensetzung und coextrudierte platte erhältlich hieraus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6177802A (ja) * | 1984-09-26 | 1986-04-21 | Teijin Chem Ltd | 光拡散透過用成形品 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR959731A (xx) * | 1950-04-04 | |||
| FR1098128A (fr) * | 1954-01-07 | 1955-07-18 | Procédé et dispositif de prise de vues combinées | |
| GB1436696A (en) * | 1971-12-23 | 1976-05-19 | Bakelite Xylonite Ltd | Sheet materials |
| DE2359060B2 (de) * | 1973-11-27 | 1978-03-02 | Alkor Gmbh, 8000 Muenchen | Matte und kratzfeste Filme oder Folien und Verfahren zu ihrer Herstellung |
| DE2531240C2 (de) * | 1975-07-12 | 1984-07-26 | Bayer Ag, 5090 Leverkusen | Verfahren zum Herstellen von Streulichtscheiben |
| DE2534188C2 (de) * | 1975-07-31 | 1990-08-23 | Basf Ag, 6700 Ludwigshafen | Formteile mit glatten Oberflächen aus glasfaserverstärkten Kunststoffen |
-
1978
- 1978-05-10 GB GB18675/78A patent/GB1585338A/en not_active Expired
- 1978-05-11 SE SE7805406A patent/SE7805406L/xx unknown
- 1978-05-12 NL NL7805193A patent/NL7805193A/xx not_active Application Discontinuation
- 1978-05-12 IT IT49314/78A patent/IT1103150B/it active
- 1978-05-12 JP JP5572578A patent/JPS53141642A/ja active Pending
- 1978-05-12 DK DK209878A patent/DK209878A/da not_active Application Discontinuation
- 1978-05-12 FR FR7814327A patent/FR2390265B1/fr not_active Expired
- 1978-05-16 CH CH530478A patent/CH635440A5/de not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5706134A (en) * | 1919-06-22 | 1998-01-06 | Keiwa Shoko Kabushiki Kaisha | Light-diffusing sheet member |
| WO1997008252A1 (en) * | 1995-08-30 | 1997-03-06 | Minnesota Mining And Manufacturing Company | Back light reflection sheet for liquid crystal |
| WO2013020982A1 (de) | 2011-08-08 | 2013-02-14 | Bayer Intellectual Property Gmbh | Gefüllte polymerzusammensetzung und coextrudierte platte erhältlich hieraus |
| US9359489B2 (en) | 2011-08-08 | 2016-06-07 | Covestro Deutschland Ag | Polymer composition having a filler content and coextruded sheet obtainable therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| CH635440A5 (en) | 1983-03-31 |
| FR2390265A1 (xx) | 1978-12-08 |
| IT1103150B (it) | 1985-10-14 |
| NL7805193A (nl) | 1978-11-16 |
| JPS53141642A (en) | 1978-12-09 |
| IT7849314A0 (it) | 1978-05-12 |
| DK209878A (da) | 1978-11-15 |
| SE7805406L (sv) | 1978-11-15 |
| FR2390265B1 (xx) | 1983-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930510 |