BR8902384A - Politioureias,processo para a preparacao das mesmas - Google Patents
Politioureias,processo para a preparacao das mesmasInfo
- Publication number
- BR8902384A BR8902384A BR898902384A BR8902384A BR8902384A BR 8902384 A BR8902384 A BR 8902384A BR 898902384 A BR898902384 A BR 898902384A BR 8902384 A BR8902384 A BR 8902384A BR 8902384 A BR8902384 A BR 8902384A
- Authority
- BR
- Brazil
- Prior art keywords
- polythiourias
- preparation
- same
- polythioureas
- denotes
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G71/00—Macromolecular compounds obtained by reactions forming a ureide or urethane link, otherwise, than from isocyanate radicals in the main chain of the macromolecule
- C08G71/02—Polyureas
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
- C08F2/004—Scale prevention in a polymerisation reactor or its auxiliary parts by a prior coating on the reactor walls
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
- C08F2/005—Scale prevention in a polymerisation reactor or its auxiliary parts by addition of a scale inhibitor to the polymerisation medium
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)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Polymerisation Methods In General (AREA)
- Saccharide Compounds (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8807058A FR2631966B1 (pt) | 1988-05-24 | 1988-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8902384A true BR8902384A (pt) | 1990-01-16 |
Family
ID=9366676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR898902384A BR8902384A (pt) | 1988-05-24 | 1989-05-24 | Politioureias,processo para a preparacao das mesmas |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0343705B1 (pt) |
AT (1) | ATE87639T1 (pt) |
BR (1) | BR8902384A (pt) |
DE (1) | DE68905666T2 (pt) |
FR (1) | FR2631966B1 (pt) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114476A (en) * | 1998-08-10 | 2000-09-05 | Occidental Chemical Corporation | Inhibiting scale in vinyl monomer polymerization |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE544868A (pt) * | ||||
CH330018A (de) * | 1954-07-13 | 1958-05-15 | Ciba Geigy | Verfahren zur Herstellung neuer Polyharnstoffe |
DE1042892B (de) * | 1957-04-06 | 1958-11-06 | Bayer Ag | Verfahren zur Herstellung von loeslichen Polyharnstoffen |
FR2535325B1 (fr) * | 1982-10-27 | 1987-10-30 | Toyo Soda Mfg Co Ltd | Procede de polymerisation non aqueuse du chlorure de vinyle |
-
1988
- 1988-05-24 FR FR8807058A patent/FR2631966B1/fr not_active Expired - Fee Related
-
1989
- 1989-05-12 DE DE89201196T patent/DE68905666T2/de not_active Expired - Fee Related
- 1989-05-12 EP EP89201196A patent/EP0343705B1/fr not_active Expired - Lifetime
- 1989-05-12 AT AT89201196T patent/ATE87639T1/de not_active IP Right Cessation
- 1989-05-24 BR BR898902384A patent/BR8902384A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2631966A1 (pt) | 1989-12-01 |
ATE87639T1 (de) | 1993-04-15 |
EP0343705A1 (fr) | 1989-11-29 |
DE68905666T2 (de) | 1993-10-07 |
EP0343705B1 (fr) | 1993-03-31 |
FR2631966B1 (pt) | 1992-03-13 |
DE68905666D1 (de) | 1993-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB19 | Grant procedure suspended (art. 19) | ||
FF | Decision: intention to grant | ||
KD | Notifcation of receipt (letter patent) | ||
HO | Change of classification |
Free format text: INT.CL.6 C08G 75/00;C08F 2/44 E 14/06 |
|
FA11 | Dismissal: dismissal - article 38, par. 2 of industrial property law |