CH239216A - Process for the preparation of a copolymer of vinyl esters. - Google Patents
Process for the preparation of a copolymer of vinyl esters.Info
- Publication number
- CH239216A CH239216A CH239216DA CH239216A CH 239216 A CH239216 A CH 239216A CH 239216D A CH239216D A CH 239216DA CH 239216 A CH239216 A CH 239216A
- Authority
- CH
- Switzerland
- Prior art keywords
- vinyl esters
- copolymer
- preparation
- vinyl
- mixed
- Prior art date
Links
- 229920001567 vinyl ester resin Polymers 0.000 title claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 229920001577 copolymer Polymers 0.000 title description 2
- 229920000642 polymer Polymers 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- AJCHRUXIDGEWDK-UHFFFAOYSA-N bis(ethenyl) butanedioate Chemical compound C=COC(=O)CCC(=O)OC=C AJCHRUXIDGEWDK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229960003328 benzoyl peroxide Drugs 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- -1 divinyl ester Chemical class 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- IYNRVIKPUTZSOR-HWKANZROSA-N ethenyl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC=C IYNRVIKPUTZSOR-HWKANZROSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
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
- C08F18/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F18/02—Esters of monocarboxylic acids
- C08F18/04—Vinyl esters
- C08F18/08—Vinyl acetate
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)
Description
Verfahren zur Herstellung eines Nischpolymerisats von Vinylestern. Es ist bekannt, die Polymerisation von Vinylestern durch Mischpolymerisation so zu beeinflussen, dass der Charakter der Ester polymerisate stark verändert wird. Bekannt ist z. B. die Verwendung von Vinylcrotonat als Zusatz.
Es wurde nun gefunden, dass besonders günstige Wirkungen durch die Mischpolyme- risation von Vinylestern der Monocarbon- säuren mit Divinylestern von Dicarbonsäuren hervorgerufen werden. Es, können dadurch ausser den schon durch andere Mittel erreich baren Verbesserungen, z. B.
Verminderung bezw. Beseitigung von Löslichkeit, des "Gold flow" unter anderem zusätzlich eine bemer kenswerte Homogenisierung und Härtung der Polymerisate erzielt werden.
In Gegenwart von nur wenigen Prozenten des Divinylesters und bei nicht zu hoher Temperatur können so bei Blockpolymerisation leicht unlösliche, unschmelzbare, glasklare und blasenfreie, sowie sehr harte, mit dem Fingernagel nicht- mehr eindrückbare und zähe Produkte ge wonnen werden.
Besonders schöne und stark lichtbrechende Polymerisate werden,beispiels- weise durch Mischpolimerisation von Vinyl- benzoat und Divinylestern erhalten. In der Wärme zeigen diese Produkte keinen Cold flow, sondern sie werden elastisch.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Misch polymerisates von Vinylestern, welches da durch gekennzeichnet ist, dass Vinylacetat in Mischpolymerisation mit Bernsteinsäuredi- vinylester umgesetzt wird.
<I>\ Beispiel:</I> 97 Gewichtsteile Vinylacetat -I- 3 Teile Bernsteinsäuredivinylester werden mit 2 /00 Benzoylsuperogyd bis höchstens 50-60 polymerisiert. Es wurde ein. blasenfreies, glasklares und sehr zähes Produkt gewonnen. Es ist für optische Zwecke verwendbar.
Process for the production of a copolymer of vinyl esters. It is known that the polymerization of vinyl esters can be influenced by copolymerization in such a way that the character of the ester polymers is greatly changed. Is known z. B. the use of vinyl crotonate as an additive.
It has now been found that particularly favorable effects are brought about by the mixed polymerization of vinyl esters of monocarboxylic acids with divinyl esters of dicarboxylic acids. It can, besides the improvements already achieved by other means, such. B.
Reduction resp. Elimination of solubility, the "gold flow", among other things, a remarkable homogenization and hardening of the polymers can be achieved.
In the presence of only a few percent of the divinyl ester and at a temperature that is not too high, easily insoluble, infusible, crystal-clear and bubble-free, as well as very hard, tough products that cannot be indented with the fingernail can be obtained with block polymerization.
Particularly beautiful and highly refractive polymers are obtained, for example, by mixed polymerisation of vinyl benzoate and divinyl esters. When heated, these products do not show any cold flow, but rather they become elastic.
The subject of the present patent is a process for the production of a mixed polymer of vinyl esters, which is characterized in that vinyl acetate is reacted in mixed polymerization with succinic acid di-vinyl ester.
<I> \ Example: </I> 97 parts by weight of vinyl acetate -I- 3 parts of divinyl succinate are polymerized with 2/00 benzoyl superoxide to a maximum of 50-60. It became a. bubble-free, crystal-clear and very tough product obtained. It can be used for optical purposes.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE239216X | 1943-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH239216A true CH239216A (en) | 1945-09-30 |
Family
ID=5903795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH239216D CH239216A (en) | 1943-05-28 | 1944-05-13 | Process for the preparation of a copolymer of vinyl esters. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE455983A (en) |
| CH (1) | CH239216A (en) |
| NL (1) | NL64596C (en) |
-
0
- NL NL64596D patent/NL64596C/xx active
- BE BE455983D patent/BE455983A/xx unknown
-
1944
- 1944-05-13 CH CH239216D patent/CH239216A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE455983A (en) | |
| NL64596C (en) |
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