公开(公告)号：DE19805122A1

公开(公告)日：1999-04-22

申请号：DE19805122

申请日：1998-02-09

Applicant: BASF AG

Inventor： MORRISON BRADLEY RONALD DR ,  KIRCHNER WERNER DR ,  SCHUMACHER GERHARD DR

IPC: C08F2/22 ,  C08F6/00 ,  C09D5/02 ,  C09D17/00 ,  C09D125/00 ,  C09D127/04 ,  C09D131/02 ,  C09D133/04 ,  C09D133/18 ,  C09D135/00 ,  D06M15/233 ,  D06M15/248 ,  D06M15/263 ,  D06M15/327

Abstract: An aqueous polymer dispersion (I) having a low residual monomer content is prepared by radical aqueous emulsion polymerisation of an ethylenically unsaturated monomer whereby (a) the monomer(s) and an initiator system (II) are mixed and (b) optionally allowed to react for up to one hour and (c) addition of a different initiator system (III) with full conversion of the monomer(s).

公开(公告)号：AT239117T

公开(公告)日：2003-05-15

申请号：AT96115375

申请日：1996-09-25

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  SCHUMACHER KARL-HEINZ DR ,  KIRCHNER WERNER DR ,  MORRISON BRADLEY RONALD DR ,  OFFNER ROLAND ,  SEYFFER HERMANN DR

IPC: C08F220/18 ,  D04H1/4209 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/425 ,  D04H1/4258 ,  D04H1/43 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/587 ,  D04H1/64 ,  D04H1/645 ,  D06M15/227 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/29 ,  D06M15/31 ,  D06M15/327 ,  D06M15/333 ,  D06M15/347 ,  D06M15/356 ,  G03C1/00 ,  G03C1/496

Abstract: A process for the prodn. of reusable fibre composite materials (FCM) contg. fibres (I) bonded together with a polymeric binder is claimed. The binder consists of an aq. dispersion of a polymer (II) which is film-forming at usage temps. and which goes entirely into soln. when the pH of the dispersion medium is changed. Also claimed is (i) material (FCM) obtd. by this process, esp. in the form of non-woven fabric or paper, and (ii) a process for recycling FCM, in which the FCM is treated with an aq. medium at a pH such that polymer (II) is dissolved to give fibres and binder soln., which are then sepd. and reused.

公开(公告)号：DE19535792A1

公开(公告)日：1997-03-27

申请号：DE19535792

申请日：1995-09-26

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  SCHUMACHER KARL-HEINZ DR ,  KIRCHNER WERNER DR ,  MORRISON BRADLEY RONALD DR ,  OFFNER ROLAND ,  SEYFFER HERMANN DR

IPC: C08F220/18 ,  D04H1/4209 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/425 ,  D04H1/4258 ,  D04H1/43 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/587 ,  D04H1/64 ,  D04H1/645 ,  D06M15/227 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/29 ,  D06M15/31 ,  D06M15/327 ,  D06M15/333 ,  D06M15/347 ,  D06M15/356 ,  G03C1/00 ,  G03C1/496 ,  C08J5/04 ,  C08J5/02 ,  C08J11/08 ,  D06M15/21 ,  D01F6/00

Abstract: A process for the prodn. of reusable fibre composite materials (FCM) contg. fibres (I) bonded together with a polymeric binder is claimed. The binder consists of an aq. dispersion of a polymer (II) which is film-forming at usage temps. and which goes entirely into soln. when the pH of the dispersion medium is changed. Also claimed is (i) material (FCM) obtd. by this process, esp. in the form of non-woven fabric or paper, and (ii) a process for recycling FCM, in which the FCM is treated with an aq. medium at a pH such that polymer (II) is dissolved to give fibres and binder soln., which are then sepd. and reused.

公开(公告)号：EP0765960A3

公开(公告)日：1998-09-02

申请号：EP96115375

申请日：1996-09-25

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  SCHUMACHER KARL-HEINZ DR ,  KIRCHNER WERNER DR ,  MORRISON BRADLEY RONALD DR ,  OFFNER ROLAND ,  SEYFFER HERMANN DR

IPC: C08F220/18 ,  D04H1/4209 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/425 ,  D04H1/4258 ,  D04H1/43 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/587 ,  D04H1/64 ,  D04H1/645 ,  D06M15/227 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/29 ,  D06M15/31 ,  D06M15/327 ,  D06M15/333 ,  D06M15/347 ,  D06M15/356 ,  G03C1/00 ,  G03C1/496

CPC classification number: D04H1/587 ,  C08F220/18 ,  D04H1/4209 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/425 ,  D04H1/4258 ,  D04H1/43 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/64 ,  D04H1/645 ,  D06M15/227 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/29 ,  D06M15/31 ,  D06M15/327 ,  D06M15/333 ,  D06M15/347 ,  D06M15/3566

Abstract: Bei einem Verfahren zur Herstellung wiederverwertbarer Faserverbundwerkstoffe, bei dem Fasern mittels eines polymeren Bindemittels miteinander verbunden werden, wird als Bindemittel eine wäßrige Polymerisatdispersion eingesetzt, die einen bei Anwendungstemperatur filmbildenden Polymerisatanteil in disperser Verteilung mit der Maßgabe enthält, daß die Gesamtmenge des in der wäßrigen Polymerisatdispersion in disperser Verteilung enthaltenen, bei Anwendungstemperatur filmbildenden Polymerisatanteils bei pH-Änderung des wäßrigen Dispergiermediums in eine wäßrige Polymerisatlösung übergeht. Dabei kann der bei Anwendungstemperatur filmbildende Polymerisatanteil der wäßrigen Polymerisatdispersion protische Säuregruppen aufweisen, und seine disperse Verteilung im wäßrigen Medium kann durch Erhöhung des pH-Werts des wäßrigen Mediums in eine wäßrige Polymerisatlösung übergehen, oder er kann basische Gruppen aufweisen, insbesondere Aminogruppen, und seine disperse Verteilung kann im wäßrigen Medium durch Absenkung des pH-Werts des wäßrigen Mediums in eine wäßrige Polymerisatlösung übergehen.

公开(公告)号：DE19752436A1

公开(公告)日：1999-05-27

申请号：DE19752436

申请日：1997-11-26

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  KIRCHNER WERNER DR ,  MALTRY WERNER ,  BONALDI LUIZ CARLOS ,  MARTINHO MINORU OI

IPC: C14C11/00

Abstract: Leather preparations are prepared from copolymer dispersions containing hydrolyzable silyl groups Leather preparations (I) having good substrate adhesion, good flow and heat resistance properties are prepared by treatment of the leather surface with a copolymer (II) as a binding agent and optionally pigments and conventional additives. 0.05-10 wt.% of (II) contains a hydrolyzable silyl group of formula (1) bonded to a C atom. R = 1-12C alkyl, aryl or alkaryl; R = methoxy, ethoxy, 2-methoxyethoxy, 2 ethoxyethoxy, 2-polyethoxyethoxy and/or acetoxy; and x = 0 or 1. The copolymer (II) may be formed in situ from a copolymer/silane mixture by reaction of a polymer analogue of a copolymer containing functional groups with a silane to introduce silyl groups of formula (1) into the copolymer.

公开(公告)号：DE19741184A1

公开(公告)日：1999-03-25

申请号：DE19741184

申请日：1997-09-18

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  LAWRENZ SVEN ,  DOBBELAAR JOHANNES DR ,  BAUER GERHARD DR ,  MUESELER FRANZ-JOSEF DR ,  KIRCHNER WERNER DR ,  MORRISON BRADLEY RONALD DR ,  NAHSTOLL JUERGEN DR ,  MEISTER MARTIN DR ,  BAECHER REINHARD DR ,  HUEBINGER WOLFGANG DR ,  SCHUMACHER GERHARD DR

IPC: C08F6/00

Abstract: Post-polymerisation reduction of the residual monomer content of a liquid solution, mixture, melt, suspension or dispersion obtained by free radical polymerisation is effected by adding a redox initiator system at a suitable temperature, the liquid in the reactor being mixed for the least possible time and at least one of the components of the initiator being added gradually to the liquid for a dose time which is 10-250 times the mixing time of the liquid.