FR2318021B3 - - Google Patents
Info
- Publication number
- FR2318021B3 FR2318021B3 FR7621384A FR7621384A FR2318021B3 FR 2318021 B3 FR2318021 B3 FR 2318021B3 FR 7621384 A FR7621384 A FR 7621384A FR 7621384 A FR7621384 A FR 7621384A FR 2318021 B3 FR2318021 B3 FR 2318021B3
- Authority
- FR
- France
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/14—Powdering or granulating by precipitation from solutions
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
-
- 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
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- 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
- G02B1/041—Lenses
- G02B1/043—Contact lenses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/18—Homopolymers or copolymers of nitriles
- C08J2333/20—Homopolymers or copolymers of acrylonitrile
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS495775 | 1975-07-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2318021A1 FR2318021A1 (en) | 1977-02-11 |
| FR2318021B3 true FR2318021B3 (en) | 1979-04-06 |
Family
ID=5393471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7621384A Granted FR2318021A1 (en) | 1975-07-14 | 1976-07-13 | PRODUCTION OF MOLDED STRUCTURES BY SOLUTION OF ACRYLONITRILE CRYSTALLINE POLYMERS AND COPOLYMERS, AND COOLING BELOW THE GELING POINT |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5217561A (en) |
| AT (1) | AT355303B (en) |
| CA (1) | CA1091419A (en) |
| DE (1) | DE2631499A1 (en) |
| FR (1) | FR2318021A1 (en) |
| GB (1) | GB1517083A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL177840C (en) * | 1979-02-08 | 1989-10-16 | Stamicarbon | METHOD FOR MANUFACTURING A POLYTHENE THREAD |
| JPS5783674A (en) * | 1980-11-12 | 1982-05-25 | Daikin Ind Ltd | Variable capacity liquid pressure unit |
| JPS588272A (en) * | 1981-07-02 | 1983-01-18 | コンパニイ・ド・コンストリユクシオン・メカニク・スユルゼル | Hydraulic motor with axial slidable blade |
| US4440711A (en) * | 1982-09-30 | 1984-04-03 | Allied Corporation | Method of preparing high strength and modulus polyvinyl alcohol fibers |
| EP0144793B1 (en) | 1983-12-05 | 1988-10-12 | AlliedSignal Inc. | High tenacity and modulus polyacrylonitrile fiber and method |
| US4940734A (en) * | 1988-11-23 | 1990-07-10 | American Cyanamid | Process for the preparation of porous polymer beads |
| WO2008057104A1 (en) * | 2006-11-09 | 2008-05-15 | Bausch & Lomb Incorporated | Use of thermal reversible associations for enhanced polymer interactions |
| WO2017174377A1 (en) * | 2016-04-08 | 2017-10-12 | Sabic Global Technologies B.V. | Polymer composition comprising a (meth)acrylic polymer and polyacrylonitrile |
| CN112622315A (en) * | 2020-12-25 | 2021-04-09 | 京旭企业有限公司 | Method and device for inverting concave direction of flexible lens |
-
1976
- 1976-06-30 AT AT477276A patent/AT355303B/en not_active IP Right Cessation
- 1976-07-01 GB GB2739876A patent/GB1517083A/en not_active Expired
- 1976-07-13 DE DE19762631499 patent/DE2631499A1/en not_active Withdrawn
- 1976-07-13 FR FR7621384A patent/FR2318021A1/en active Granted
- 1976-07-14 CA CA256,994A patent/CA1091419A/en not_active Expired
- 1976-07-14 JP JP8303976A patent/JPS5217561A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1517083A (en) | 1978-07-12 |
| AT355303B (en) | 1980-02-25 |
| DE2631499A1 (en) | 1977-02-10 |
| FR2318021A1 (en) | 1977-02-11 |
| JPS5217561A (en) | 1977-02-09 |
| CA1091419A (en) | 1980-12-16 |
| ATA477276A (en) | 1979-07-15 |