GB950055A - Improvements in or relating to color television recording and reproducing systems - Google Patents
Improvements in or relating to color television recording and reproducing systemsInfo
- Publication number
- GB950055A GB950055A GB33914/62A GB3391462A GB950055A GB 950055 A GB950055 A GB 950055A GB 33914/62 A GB33914/62 A GB 33914/62A GB 3391462 A GB3391462 A GB 3391462A GB 950055 A GB950055 A GB 950055A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cross
- polymer
- vinyl
- styrene
- vapour
- 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
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract 3
- 229920006037 cross link polymer Polymers 0.000 abstract 3
- 239000000178 monomer Substances 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 abstract 2
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 abstract 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 abstract 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 abstract 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 abstract 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 2
- 229920001400 block copolymer Polymers 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000004132 cross linking Methods 0.000 abstract 2
- 239000003431 cross linking reagent Substances 0.000 abstract 2
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 230000008961 swelling Effects 0.000 abstract 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 2
- 229920002554 vinyl polymer Polymers 0.000 abstract 2
- LGXVIGDEPROXKC-UHFFFAOYSA-N 1,1-dichloroethene Chemical class ClC(Cl)=C LGXVIGDEPROXKC-UHFFFAOYSA-N 0.000 abstract 1
- GXZPMXGRNUXGHN-UHFFFAOYSA-N 1-ethenoxy-2-methoxyethane Chemical compound COCCOC=C GXZPMXGRNUXGHN-UHFFFAOYSA-N 0.000 abstract 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 abstract 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 abstract 1
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 229920001800 Shellac Polymers 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 229920000180 alkyd Polymers 0.000 abstract 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 abstract 1
- 150000001408 amides Chemical class 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 229920005601 base polymer Polymers 0.000 abstract 1
- 238000012662 bulk polymerization Methods 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 239000007859 condensation product Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000007865 diluting Methods 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 abstract 1
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 1
- 125000005395 methacrylic acid group Chemical class 0.000 abstract 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 abstract 1
- 229920005615 natural polymer Polymers 0.000 abstract 1
- 150000002825 nitriles Chemical class 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 abstract 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 239000004926 polymethyl methacrylate Substances 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 102000004169 proteins and genes Human genes 0.000 abstract 1
- 108090000623 proteins and genes Proteins 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 abstract 1
- 239000004208 shellac Substances 0.000 abstract 1
- 229940113147 shellac Drugs 0.000 abstract 1
- 235000013874 shellac Nutrition 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
- 229920001567 vinyl ester resin Polymers 0.000 abstract 1
- -1 vinyl substituted heterocyclic compounds Chemical class 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
- H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
- H04N5/95—Time-base error compensation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Processing Of Color Television Signals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Linear block copolymers are produced by swelling a cross-linked polymer by contacting it with the vapour of a polymerizable olefinic compound at a temperature sufficient to rupture weak bonds present in the cross-linked polymer, whereby a block copolymer is formed. The degree of cross-linking in the initial polymer must be such as to permit its swelling by the olefinic compound without forming a solution of monomer in polymer. The cross-linked polymer may be derived from acrylic and methacrylic acids and salts, esters, amides and nitriles thereof, vinyl esters, aromatic and aliphatic olefines, unsaturated ketones and ethers, vinyl substituted heterocyclic compounds, vinyl and vinylidene chlorides, tetrafluoroethylene, acrolein, itaconic acid, maleic anhydride, coumarone and indene, or may be a condensation or natural polymer, e.g. condensation products of formaldehyde with phenol, urea or melamine, alkyd resins, nylons, silicones, rubber, shellac, ester gum cellulose esters or protein. The required degree of cross-linking may be introduced into the polymer by the use of polyunsaturated comonomers, by the use of cross-linking agents subsequent to polymerization, by mechanical treatment in the presence of cross-linking agents, as described in Specification 945,717, by means of high energy irradiation, or by the bulk polymerization of monomers, e.g. methyl methacrylate, which gives rise to lightly cross-linked products. The chain length of the block copolymerized monomeric material may be controlled by diluting the vapour of the monomer with an organic vapour which may be a solvent or a non-solvent for the base polymer. In the examples the vapours of styrene, acrylonitrile, vinylidene chloride, vinyl acetate, ethyl acrylate, divinyl benzene, methyl methacrylate, vinyl ethyl ether, vinyl 2-methoxyethyl ether and alpha-methyl styrene are block copolymerized on to bulk polymerized polymethyl methacrylate, and the vapours of acrylonitrile, styrene and vinylidene chloride are block copolymerized on to a copolymer of methyl methacrylate with a small proportion of ethylene dimethacrylate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US137680A US3213192A (en) | 1961-09-12 | 1961-09-12 | Magnetic tape recording and reproducing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB950055A true GB950055A (en) | 1964-02-19 |
Family
ID=22478581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33914/62A Expired GB950055A (en) | 1961-09-12 | 1962-09-04 | Improvements in or relating to color television recording and reproducing systems |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3213192A (en) |
| DE (1) | DE1293822B (en) |
| GB (1) | GB950055A (en) |
| NL (1) | NL282881A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673280A (en) * | 1967-06-14 | 1972-06-27 | Rohm & Haas | Elastomeric materials and process therefor |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL286967A (en) * | 1962-01-02 | |||
| US3342931A (en) * | 1964-04-09 | 1967-09-19 | Japan Broadcasting Corp | Phase correction system of electric signals |
| US3504111A (en) * | 1965-11-16 | 1970-03-31 | Japan Broadcasting Corp | Compensating system for color phase deviation of vtr-reproduced signal |
| US3428745A (en) * | 1966-03-24 | 1969-02-18 | Ampex | Head-to-tape velocity error compensator for rotary head video tape recorders |
| JPS516493B1 (en) * | 1968-10-03 | 1976-02-28 | ||
| US3681518A (en) * | 1969-05-10 | 1972-08-01 | Victor Company Of Japan | Color video signal correction system |
| US3678397A (en) * | 1969-10-31 | 1972-07-18 | Bell & Howell Co | Apparatus for correcting phase shifts in angle-modulated signals |
| US3651276A (en) * | 1970-04-02 | 1972-03-21 | Ampex | Automatic phasing of servo systems |
| GB2059107B (en) * | 1979-07-12 | 1983-06-02 | Universal Pioneer Corp | Tangential servo control signal generating device |
| US4352121A (en) * | 1980-04-08 | 1982-09-28 | Ampex Corporation | PAL Burst phase shift error corrector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE540721A (en) | 1954-08-23 | |||
| US2979558A (en) | 1957-10-02 | 1961-04-11 | Rca Corp | Recording and reproducing system |
| US2988593A (en) * | 1958-10-01 | 1961-06-13 | Rca Corp | Tape reproducing system |
| US3114001A (en) * | 1958-11-06 | 1963-12-10 | Ampex | Magnetic tape recording and/or reproducing system and method |
| US3048665A (en) * | 1959-01-02 | 1962-08-07 | Rca Corp | Magnetic record reproducing apparatus |
| US3049595A (en) * | 1959-03-09 | 1962-08-14 | Minnesota Mining & Mfg | Transducing system |
-
0
- NL NL282881D patent/NL282881A/xx unknown
-
1961
- 1961-09-12 US US137680A patent/US3213192A/en not_active Expired - Lifetime
-
1962
- 1962-09-04 GB GB33914/62A patent/GB950055A/en not_active Expired
- 1962-09-12 DE DEA41139A patent/DE1293822B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673280A (en) * | 1967-06-14 | 1972-06-27 | Rohm & Haas | Elastomeric materials and process therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1293822B (en) | 1969-04-30 |
| US3213192A (en) | 1965-10-19 |
| NL282881A (en) |
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