ES381255A1 - Improvements in a procedure to produce a synthetic reinforced rubber resin. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements in a procedure to produce a synthetic reinforced rubber resin. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES381255A1 ES381255A1 ES381255A ES381255A ES381255A1 ES 381255 A1 ES381255 A1 ES 381255A1 ES 381255 A ES381255 A ES 381255A ES 381255 A ES381255 A ES 381255A ES 381255 A1 ES381255 A1 ES 381255A1
- Authority
- ES
- Spain
- Prior art keywords
- monomers
- regulator
- rubber
- polymerization
- employing
- 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
Classifications
-
- 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
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
- C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Improvements in a process for producing a synthetic reinforced rubber resin by polymerizing a mixture of vinyl aromatic monomers and vinyl cyanide contain from about 18 mole percent to about 57 mole percent of the vinyl cyanide monomer in an area of reaction containing an aqueous emulsion of from about 0.1 to about 1.25 parts by weight for each part of said monomer mixture of an ethylenically unsaturated rubber, a free radical initiator, and a mercaptan polymerization regulator, characterized by: (a) employing an inorganic peroxide as said free radical initiator; (b) employing as the said rubber a butadiene polymer containing up to about 50% by weight of combined styrene and having an average particle size of from about 0.2 to about 0.6 microns, a gel content of approximately 85%, and a benzene swelling index greater than about 15; (c) employing said mercaptan polymerization regulator in an amount of less than about 0.034 equivalents of mercaptene per kilogram of said rubber and monomers; (d) reacting an initial portion of about 20% to 80% of said monomers at a polymerization temperature of about 60ºC to 90ºC in the presence of an initial portion of said regulator of at least about 0.0035 equivalents of mercaptan per kilogram of said rubber and monomers in said reaction zone, and then introduce a further portion of said regulator in said reaction zone, sufficient to increase the total amount of said regulator introduced in said reaction zone by at least 25% and maintain a temperature of polymerization of about 60ºC to 90ºC until at least about 90% of said monomers have reacted. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83740169A | 1969-06-30 | 1969-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES381255A1 true ES381255A1 (en) | 1972-11-01 |
Family
ID=25274343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES381255A Expired ES381255A1 (en) | 1969-06-30 | 1970-06-27 | Improvements in a procedure to produce a synthetic reinforced rubber resin. (Machine-translation by Google Translate, not legally binding) |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE752762A (en) |
| DE (1) | DE2031887A1 (en) |
| ES (1) | ES381255A1 (en) |
| FR (1) | FR2051451A5 (en) |
| IL (1) | IL34784A0 (en) |
| NL (1) | NL7009552A (en) |
| ZA (1) | ZA704249B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2853572A1 (en) * | 1978-12-12 | 1980-07-03 | Bayer Ag | HIGHLY CROSSLINKED THERMOPLASTIC-ELASTOMER GRAFT POLYMERISATES |
| IT1196375B (en) * | 1984-12-18 | 1988-11-16 | Riveda Srl | METHOD FOR THE PREPARATION OF CRIMPED COPOLYMERS FOR EMULSION POLYMERIZATION |
-
1970
- 1970-06-22 ZA ZA704249A patent/ZA704249B/en unknown
- 1970-06-23 IL IL34784A patent/IL34784A0/en unknown
- 1970-06-27 DE DE19702031887 patent/DE2031887A1/en active Pending
- 1970-06-27 ES ES381255A patent/ES381255A1/en not_active Expired
- 1970-06-29 FR FR7024063A patent/FR2051451A5/en not_active Expired
- 1970-06-29 NL NL7009552A patent/NL7009552A/xx unknown
- 1970-06-30 BE BE752762D patent/BE752762A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2031887A1 (en) | 1971-09-02 |
| ZA704249B (en) | 1971-02-24 |
| BE752762A (en) | 1970-12-01 |
| IL34784A0 (en) | 1970-09-17 |
| NL7009552A (en) | 1971-01-04 |
| FR2051451A5 (en) | 1971-04-02 |
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