FR2196233A1 - Light polarizing panel mfr - by laminating foam plastic between non-foam outer sheets - Google Patents

Light polarizing panel mfr - by laminating foam plastic between non-foam outer sheets

Info

Publication number
FR2196233A1
FR2196233A1 FR7229605A FR7229605A FR2196233A1 FR 2196233 A1 FR2196233 A1 FR 2196233A1 FR 7229605 A FR7229605 A FR 7229605A FR 7229605 A FR7229605 A FR 7229605A FR 2196233 A1 FR2196233 A1 FR 2196233A1
Authority
FR
France
Prior art keywords
sheet
foamed
foam
mfr
light polarizing
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.)
Granted
Application number
FR7229605A
Other languages
French (fr)
Other versions
FR2196233B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
POLRIZED CORP OF AMERICA
Original Assignee
POLRIZED CORP OF AMERICA
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.)
Filing date
Publication date
Application filed by POLRIZED CORP OF AMERICA filed Critical POLRIZED CORP OF AMERICA
Priority to FR7229605A priority Critical patent/FR2196233A1/en
Publication of FR2196233A1 publication Critical patent/FR2196233A1/en
Application granted granted Critical
Publication of FR2196233B1 publication Critical patent/FR2196233B1/fr
Granted legal-status Critical Current

Links

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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/30—Making multilayered or multicoloured articles
    • B29C43/305—Making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/42—Polarizing, birefringent, filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

The panel is made by bringing a supporting heated plastics sheet into contact with a foamed plastics polarizing sheet, the heat from the supporting sheet being suffict. to heat the foamed sheet and bond the two together without adhesive, and then bringing the heated foamed sheet into contact with a covering sheet to form a sandwich with the foamed sheet as core. The residual heat in the foamed sheet is suffict. to bond it to the covering sheet. Such a method can be effected as a continuous process by the use of laminating rolls and avoids the use of adhesives. The supporting and cover sheets may be polystyrene, an acrylic, a vinyl or a polyester and the foamed sheet is pref. foamed polystyrene.
FR7229605A 1972-08-18 1972-08-18 Light polarizing panel mfr - by laminating foam plastic between non-foam outer sheets Granted FR2196233A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7229605A FR2196233A1 (en) 1972-08-18 1972-08-18 Light polarizing panel mfr - by laminating foam plastic between non-foam outer sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7229605A FR2196233A1 (en) 1972-08-18 1972-08-18 Light polarizing panel mfr - by laminating foam plastic between non-foam outer sheets

Publications (2)

Publication Number Publication Date
FR2196233A1 true FR2196233A1 (en) 1974-03-15
FR2196233B1 FR2196233B1 (en) 1976-08-13

Family

ID=9103325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229605A Granted FR2196233A1 (en) 1972-08-18 1972-08-18 Light polarizing panel mfr - by laminating foam plastic between non-foam outer sheets

Country Status (1)

Country Link
FR (1) FR2196233A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2196233B1 (en) 1976-08-13

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Legal Events

Date Code Title Description
ST Notification of lapse