Use of a polymer dispersion as dust control agent
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United States of America Patent
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Oct 31, 2017
Issued Date -
N/A
app pub date -
Apr 12, 2013
filing date -
Apr 17, 2012
priority date (Note) -
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Abstract
The present invention relates to the use of polymer dispersions for dust control, wherein these polymer dispersions can be obtained by radically initiated emulsion polymerisation of the components a to e: a. 2-75% by weight styrene and/or substituted styrene and b. 0 to 75% by weight acrylic acid C1-C2 ester and/or methacrylic acid C1 to C12 ester and c. 0 to 50% by weight acrylonitrile and/or methacrylonitrile and d. 0 to 50% by weight of at least one further copolymerisable ethylenically unsaturated monomers with one or more C—C double bonds in the presence of e. 10 to 7% by weight starch and/or modified starch and/or degraded starch and/or degrated modified starch wherein the polymerisation is carried out in water.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KURITA WATER INDUSTRIES LTD | 10-1 NAKANO 4-CHOME NAKANO-KU TOKYO 1640001 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lunkenheimer, Rudolf | Wackernheim, DE | 6 | 21 |
# of filed Patents : 6 Total Citations : 21 | |||
Stephan, Tim | Limburgerhof, DE | 1 | 2 |
# of filed Patents : 1 Total Citations : 2 | |||
Urschey, Michael | Krefeld, DE | 4 | 2 |
# of filed Patents : 4 Total Citations : 2 |
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- C09K Class
- 0 % this patent is cited more than
- 8 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 30, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 30, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Dec 06, 2021 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 06, 2021 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 31, 2021 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 31, 2021 |
Jun 21, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 27, 2018 | CC | CERTIFICATE OF CORRECTION | |
Oct 31, 2017 | I | Issuance | |
Oct 11, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 11, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BK GIULINI GMBH;REEL/FRAME:035939/0176 Owner name: KURITA WATER INDUSTRIES LTD., JAPAN Effective Date: Jun 11, 2015 |
Mar 05, 2015 | P | Published | |
Dec 16, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:URSCHEY, MICHAEL;LUNKENHEIMER, RUDOLF;STEPHAN, TIM;SIGNING DATES FROM 20141110 TO 20141212;REEL/FRAME:034512/0954 Owner name: BK GIULINI GMBH, GERMANY |
Apr 12, 2013 | F | Filing | |
Apr 18, 2012 | PD | Priority Date |

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