DE3772612D1 - DEFOAM MIXTURE. - Google Patents
DEFOAM MIXTURE.Info
- Publication number
- DE3772612D1 DE3772612D1 DE8787105302T DE3772612T DE3772612D1 DE 3772612 D1 DE3772612 D1 DE 3772612D1 DE 8787105302 T DE8787105302 T DE 8787105302T DE 3772612 T DE3772612 T DE 3772612T DE 3772612 D1 DE3772612 D1 DE 3772612D1
- Authority
- DE
- Germany
- Prior art keywords
- pref
- alkyl
- formula
- defoam
- mixture
- 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 - Fee Related
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
1. A block copolymer (I) used as a foam inhibitor has the formula given in DE3531212.3, with R = trimethylolpropane-or trimethylolethane-residue. (This formula is as follows): (I) (as specified in the Master Patent or ad modified above) is used in combination with an emulsifier (II) of formula R1O-(CH2CH2O)n-R2 R1 = 8-20C alkyl or alkenyl or 12-20C alkylaryl; R2 = 4-6C alkyl; n = 6-20. 2. The above mixt. is claimed as such, with R1 = 12-18C alkyl or alkenyl. Pref. amts. are 99-70 (esp. pref. 96-80) wt.% (I) and 1-30 (esp. pref. 4-20 wt.% (II).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8787105302T DE3772612D1 (en) | 1986-04-18 | 1987-04-10 | DEFOAM MIXTURE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863613128 DE3613128A1 (en) | 1985-08-31 | 1986-04-18 | DEFOAMER |
DE8787105302T DE3772612D1 (en) | 1986-04-18 | 1987-04-10 | DEFOAM MIXTURE. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3772612D1 true DE3772612D1 (en) | 1991-10-10 |
Family
ID=25843009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787105302T Expired - Fee Related DE3772612D1 (en) | 1986-04-18 | 1987-04-10 | DEFOAM MIXTURE. |
Country Status (2)
Country | Link |
---|---|
AT (1) | ATE66824T1 (en) |
DE (1) | DE3772612D1 (en) |
-
1987
- 1987-04-10 AT AT87105302T patent/ATE66824T1/en not_active IP Right Cessation
- 1987-04-10 DE DE8787105302T patent/DE3772612D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE66824T1 (en) | 1991-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |