Patent US3724513A successfully refreshed from Google Patents.
Patent US3282866A successfully refreshed from Google Patents.
US3282866A
Expired / Lapsed
US
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Compositions for coating paper
Assignee: BASF SE
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Filing: 1963-10-22
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Granted: 1966-11-01
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Expires: 1983-10-22
Abstract
No abstract record available.
Inventors
- 👤 Pohlemann Heinz
- 👤 Hasse Karl
- 👤 Reinbold Immo
- 👤 Bruening Diethelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:07
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A COATING COMPOSITON FOR PAPER, COMPRISING AN AQUEOUS POLYMER DISPERSION, A PIGMENT AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF STARCH AND CASEIN, WHEREIN THE DISPERSION CONTAINS: (I) A POLYMER OF 40 TO 70 PARTS BY WEIGHT OF STYRENE, 40 TO 70 PARTS BY WEIGHT OF AN ACRYLIC ESTER OF AN ALIPHATIC ALCOHOL HAVING TWO TO TWELVE CARBON ATOMS AND 0.5 TO 5 PARTS BY WEIGHT OF METHACRYLAMIDE AND (II) AN EMULSIFIER MIXTURE COMPRISING (A) AN ALKYLATED PHENOL HAVING A CARBON CHAIN WITH SIX TO TWENTY CARBON ATOMS, WHICH HAS BEEN REACTED PER MOLE WITH AT LEAST NINE MOLES AND AT THE MOST 50 MOLES OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE AND MIXTURES THEREOF AND THEN SULFONATED, AND (B) A REACTION PRODUCT OF AT LEAST TEN MOLES AND AT THE MOST 50 MOLES OF ETHYLENE OXIDE PER MOLE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALKYLATED PHENOL HAVING A CARBON CHAIN WITH SIX TO TWENTY CARBON ATOMS AND ALIPHATIC ALCOHOLS WITH 12 TO 20 CARBON ATOMS.
Claim 2
Dependent Claim
177 words
A COATING COMPOSITON FOR PAPER, COMPRISING AN AQUEOUS POLYMER DISPERSION, A PIGMENT AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF STARCH AND CASEIN, WHEREIN THE DISPERSION CONTAINS: (I) A POLYMER OF 40 TO 70 PARTS BY WEIGHT OF STYRENE, 40 TO 70 PARTS BY WEIGHT OF AN ACRYLIC ESTER OF AN ALIPHATIC ALCOHOL HAVING TWO TO TWELVE CARBON ATOMS AND 0.5 TO 5 PARTS BY WEIGHT OF METHACRYLAMIDE AND (II) AN EMULSIFIER MIXTURE COMPRISING (A) AN ALKYLATED PHENOL HAVING A CARBON CHAIN WITH SIX TO TWENTY CARBON ATOMS, WHICH HAS BEEN REACTED PER MOLE WITH AT LEAST NINE MOLES AND AT THE MOST 50 MOLES OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE AND MIXTURES THEREOF AND THEN SULFONATED, AND (B) A REACTION PRODUCT OF AT LEAST TEN MOLES AND AT THE MOST 50 MOLES OF ETHYLENE OXIDE PER MOLE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALKYLATED PHENOL HAVING A CARBON CHAIN WITH SIX TO TWENTY CARBON ATOMS AND ALIPHATIC ALCOHOLS WITH 12 TO 20 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |