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公开(公告)号:JPH05106193A
公开(公告)日:1993-04-27
申请号:JP260691
申请日:1991-01-14
Applicant: BASF AG
Inventor: BUERUNAA AUHORUN , FURIIDORITSUHI RINHARUTO , PURIMOTSU ROORENKAKU , MIHIYAERU KUREENAA , NORUBERUTO ZENDOHOFU , BUARUTAA DENTSUINGAA , HAINRITSUHI HARUTOMAN
Abstract: PURPOSE: To obtain paper, board and cardboard from which a product having good retention, coagulation and dehydration is formed by draining a paper stock contg. undesirable substances in the presence of a specified fixing agent and a cationic retention aid. CONSTITUTION: A paper stock contg. undesirable substances (such as unbleached pulp) is polymerized with up to 90 molar % of an ethylenic unsatd. monomer from the group of vinyl acetate, vinyl propionate, 1-4C alkyl vinyl ether, N- vinylpyrrolidone, ester, nitrile, and acrylic or methacrylic amide. The paper stock is drained in the presence of the introduced N-vinylformamide homo- and/or co-polymer (preferably with a K value of 60-90) having a hydrolytic degree of not less than 60% (preferably 70-100%) as a fixing agent and preferably a cationic retention aid such as polydiallyldimethyl ammonium chloride, to obtain the objective paper.
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公开(公告)号:JPH0570654A
公开(公告)日:1993-03-23
申请号:JP2225792
申请日:1992-02-07
Applicant: BASF AG
Inventor: ORAARU AIDEIN , BUARUTAA DENTSUINGAA , RORUFU DERUSHIYU , GERUNOOTO FURANTSUMAN , NORUBERUTO GURAIFU , HAINRITSUHI HARUTOMAN , ETSUKEHARUTO BUISUTEYUUBA
IPC: C04B26/04 , C08F8/12 , C08F8/44 , C08L33/02 , C08L35/00 , C08L35/08 , C09D123/02 , C09D123/08 , C09D129/00 , C09D129/10 , C09D133/02 , C09D135/08 , C09J123/02 , C09J123/08 , C09J129/00 , C09J129/10 , C09J133/02 , C09J135/00 , C09J135/08 , C09K3/18 , E04B1/682
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公开(公告)号:JPH04275333A
公开(公告)日:1992-09-30
申请号:JP32565091
申请日:1991-12-10
Applicant: BASF AG
Inventor: YOOAHIMU ROOZAA , YURUGEN MOORU , ARUMIN RANGE , KUNUUTO OPENRENDAA , BUARUTAA DENTSUINGAA , TOOMASU RERUTSUAA
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公开(公告)号:JPH03207800A
公开(公告)日:1991-09-11
申请号:JP24286390
申请日:1990-09-14
Applicant: BASF AG
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公开(公告)号:JPH0376800A
公开(公告)日:1991-04-02
申请号:JP20770890
申请日:1990-08-07
Applicant: BASF AG
Inventor: ORUTOBUIN SHIYATSUFUAA , HERUBERUTO BAI , KAARU SHIYUTORUKU , NORUBERUTO GURAIFU , KUNUUTO OTSUPENRENDAA , BUARUTAA DENTSUINGAA , HAINRITSUHI HARUTOMAN
IPC: C08F8/00 , C08F210/00 , C14C9/00
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