公开(公告)号：DE2528497A1

公开(公告)日：1977-01-20

申请号：DE2528497

申请日：1975-06-26

Applicant: BASF AG

Inventor： FIKENTSCHER ROLF DIPL CHEM DR ,  GREIF NORBERT DIPL CHEM DR ,  ENGLER PETER DIPL ING DR ,  STOEHR DIETER ING GRAD

IPC: C08J3/05 ,  D01F6/04

Abstract: The dispersions are prepd. by dispersing the fibrous prods in the presence of a dispersant. Dispersant consists of polyoxyalkylated sulphated alcohols contg. 1-6 structural units having formula -C-O- (CH2CH2O)x (CH2CHMeO) SO3M(I) (where x = 0-30; y = 1-35; M = Na, K or NH4+ and Me is methyl). The fibrid dispersions can be processed to paper or textile-like sheets and webs. Used of (I) prevents foaming and agglomeration on distn. of fibrid dispersions and in sheet formation, esp. on paper machines. Fibre-bonding and initial wet-strength of webs obtd. is improved. Small quantities of (I) are sufficient to disperse the hydrophobic fibrids in water. In an example, high density polyethylene fibrids were mixed with sulphite pulp in water. Dispersion was added to a sheet-former contg. water. 1% CH2O 2 - (CH2-CH2O)38(CH2CHMeO)4o (SO3Na)2 was used as dispersant. The sheets obtd. had wt/area 130 g/m2, initial wet strength 70g. Foaming on distn. and sheet-forming was weak. No sheet could be formed in absence of (I).

公开(公告)号：DE2428688A1

公开(公告)日：1976-01-15

申请号：DE2428688

申请日：1974-06-14

Applicant: BASF AG

Inventor： GREIF NORBERT DIPL CHEM DR ,  GERENDAS JOZSEF DIPL CHEM DR ,  ROKOHL RUDOLF DIPL CHEM DR ,  SCHARPENBERG HANS-GEORG DIPL C

IPC: D06P1/66 ,  D06P3/76 ,  C07C93/04

Abstract: Quaternary NH4 salts have general formula (where Ris m-valent 3-7 C alkyl; R1 is mono-valent 1-4 C alkyl; R2 is mono-valent 8-22 C alkyl; X- is Cl or Br anion, 1 is 0 to 6, m is 3 to 7, n is 1 to 7 and 1 + n max. = m). Pref. as retarders in dyeing anionic polyacrylonitrile fibres with basic dyes. W.r.t. standard retarders, (I) have higher activity and can be used in smaller quantities to achieve same levelling effect; (ii) fibre-blocking risk is overcome. (I) are pref. pred. by reacting an alcohol having formula R(OH)m (II) with (m-1) mol. epihalohydrin in presence of a Lewis acid and then with at least one tert. fatty amine of formula NR12R2.