NL89255C - - Google Patents

Info

Publication number
NL89255C
NL89255C NL89255DA NL89255C NL 89255 C NL89255 C NL 89255C NL 89255D A NL89255D A NL 89255DA NL 89255 C NL89255 C NL 89255C
Authority
NL
Netherlands
Application number
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.)
Publication of NL89255C publication Critical patent/NL89255C/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10Esters
    • C08F20/12Esters of monohydric alcohols or phenols
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006Monomers or prepolymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00009Production of simple or compound lenses
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/02Polymerisation in bulk
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041Lenses
NL89255D 1952-01-10 NL89255C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB72152A GB738487A (en) 1952-01-10 1952-01-10 Improvements in or relating to the manufacture of moulded articles

Publications (1)

Publication Number Publication Date
NL89255C true NL89255C (xx)

Family

ID=9709362

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7807431,A NL188031B (nl) 1952-01-10 Wikkeldrager.
NL89255D NL89255C (xx) 1952-01-10

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7807431,A NL188031B (nl) 1952-01-10 Wikkeldrager.

Country Status (3)

Country Link
GB (1) GB738487A (xx)
LU (1) LU32916A1 (xx)
NL (2) NL89255C (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826889A (en) * 1978-07-18 1989-05-02 Polymer Technology, Corp. Dimensionally stable oxygen permeable hard contact lens material and method of manufacture
JPH0625204B2 (ja) * 1985-08-28 1994-04-06 住友化学工業株式会社 ビニル系単量体の重合成形方法

Also Published As

Publication number Publication date
NL188031B (nl)
LU32916A1 (xx)
GB738487A (en) 1955-10-12

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