US3752793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powdered coating materials
Assignee: Bayer AG
•
Filing: 1971-10-22
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Granted: 1973-08-14
•
Expires: 1991-10-22
Abstract
Abstract POWDERED COATING AGENT FOR USE IN THE ELECTROSTATIC SPRAYED POWDER PROCESS CONSISTING OF MIXTURES OF (A) COPOLYMERS (B) BIS- OR TRIS-OXAZOLINES AND OPTIONALLY (C) AUXILIARY AGENTS SUCH AS PIGMENTS AND FLOWING AGENTS. THE COPOLYMER CONTAINS POLYMERISED UNITS OF 25-60% STYRENE OR DERIVATIVES THEREOF OR (METH)ACRYLONITRILE; 30-65% BY WEIGHT OF ACRYLIC OR METHACRYLIC ESTERS AND 5-20% BY WEIGHT OF A,B-UNSATURATED CARBOXYLIC ACIDS. 5 TO 25 PARTS BY WEIGHT OF BIS- OR TRISOXAZOLINES ARE EMPLOYED FOR 95 TO 75 PARTS BY WEIGHT OF COPOLYMER.
Inventors
- 👤 De Ramis A Zankl
- 👤 D Arlt
- 👤 H Bertram
- 👤 H Zankl
- 👤 W Zankl
- 👤 J Pedain
- 👤 E Zankl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:46
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D133/18; C09D133/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |