ES290243A1 - A procedure to polymerize a lactama with a polyamide (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure to polymerize a lactama with a polyamide (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES290243A1 ES290243A1 ES290243A ES290243A ES290243A1 ES 290243 A1 ES290243 A1 ES 290243A1 ES 290243 A ES290243 A ES 290243A ES 290243 A ES290243 A ES 290243A ES 290243 A1 ES290243 A1 ES 290243A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- radical
- organic
- cocatalyst
- aromatic
- 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
Landscapes
- Polyamides (AREA)
Abstract
A process for polymerizing a lactam to a polyamide in the presence of a basic catalyst and a cocatalyst, characterized in that the cocatalyst is an aromatic ester of an organic acid or carbonic acid of formula X-CO-O-Ar, has the Formula R-CO-B, or is a substituted-methylene-3-substituted-4,5-dione-2-oxazolidine of formula ** (See formula) ** 2,2,4,4-tetramethyl-1,3-cyclobutanedione, or 2,2,4-trimethyl-3-hydroxyl3-pentenoic acid blactone, where R'1, R'2 and R'3 are alkyl radicals, cycloalkyls, or aryls, of up to 20 carbon atoms and where R'1 and R'2 can form, together with the double bond carbon atom to which they are attached, a cycloalkylene radical, where R is an organic radical comprising a heterocyclic ring containing two double bonds and is attached to the rest of the cocatalyst molecule by an annular nitrogen atom as shown in formula N-CO-B, and where B is NR1R2 or - (A) r-CO-R ', wherein R1 and R2 are hydrogen atoms or aliphatic, cycloaliphatic or aryl radicals, A is a divalent, acyclic, alicyclic, or aromatic organic radical, x is 0 or 1, and R' is an organic radical similar to that described for R , and where Ar is an aromatic radical, and X is a hydrogen atom or an organic radical where, when bound to the CO group, there is carbon or tertiary nitrogen and n where any acyclic chain that may be linked to another CO-O-Ar group contains at least 4 carbon atoms in said chain, δ is an organic or inorganic radical where oxygen is bound to the CO group. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US229159A US3207729A (en) | 1962-10-08 | 1962-10-08 | Anionic polymerization of lactams with 2, 2, 4, 4-tetramethyl-1, 3-cyclobutane dione as promoter |
| US229161A US3214415A (en) | 1962-10-08 | 1962-10-08 | Polymerization of lactams with the beta-lactone of 2, 2, 4-trimethyl-3-hydroxy-3-pentenoic acid as activator |
| US242895A US3207713A (en) | 1962-12-07 | 1962-12-07 | Process of polymerizing and foaming a lactam using an organic carbonate cocatalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES290243A1 true ES290243A1 (en) | 1963-11-01 |
Family
ID=66615214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES290243A Expired ES290243A1 (en) | 1962-10-08 | 1963-07-23 | A procedure to polymerize a lactama with a polyamide (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES290243A1 (en) |
-
1963
- 1963-07-23 ES ES290243A patent/ES290243A1/en not_active Expired
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