公开(公告)号：US06509096B1

公开(公告)日：2003-01-21

申请号：US09959067

申请日：2001-10-16

Applicant: Günther Ott ,  Joachim Woltering ,  Wilfried Stübbe ,  Ulrike Röckrath ,  Maximilian Bendix ,  Ulrich Kalck ,  Jan Berg ,  Götz-Ekkehard Sapper

Inventor： Günther Ott ,  Joachim Woltering ,  Wilfried Stübbe ,  Ulrike Röckrath ,  Maximilian Bendix ,  Ulrich Kalck ,  Jan Berg ,  Götz-Ekkehard Sapper

IPC: B32B904

CPC classification number: C09D5/02 ,  Y10T428/31504

Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which at least one polyvalent inorganic acid and/or oxalic acid are or is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.

Abstract translation: 本发明涉及通过将至少一种粉末涂料分散体，特别是粉末透明涂料浆料施加到基材上然后将所得膜热固化，从而在底漆或未涂布基材上生产单涂层或多色透明涂层的方法 和/或光化辐射，其中至少一种多价无机酸和/或草酸被添加至至少一种粉末涂料分散体，特别是粉末涂料浆料中。

公开(公告)号：US06770329B2

公开(公告)日：2004-08-03

申请号：US10273189

申请日：2002-10-17

Applicant: Günther Ott ,  Joachim Woltering ,  Wilfried Stübbe ,  Ulrike Röckrath ,  Maximilian Bendix ,  Ulrich Kalck ,  Jan Berg ,  Götz-Ekkehard Sapper

Inventor： Günther Ott ,  Joachim Woltering ,  Wilfried Stübbe ,  Ulrike Röckrath ,  Maximilian Bendix ,  Ulrich Kalck ,  Jan Berg ,  Götz-Ekkehard Sapper

IPC: B05D138

CPC classification number: C09D5/02 ,  Y10T428/31504

Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which oxalic acid is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.

Abstract translation: 本发明涉及通过将至少一种粉末涂料分散体，特别是粉末透明涂料浆料施加到基材上然后将所得膜热固化，从而在底漆或未涂布基材上生产单涂层或多色透明涂层的方法 和/或光化辐射，其中向至少一种粉末涂料分散体中加入草酸，特别是粉末透明涂料浆料。

公开(公告)号：US5455346A

公开(公告)日：1995-10-03

申请号：US355283

申请日：1994-12-12

Applicant: Michael Kopietz ,  Ulrich Kalck ,  Simon Jones ,  Peter Bassler ,  Claus-Ulrich Priester

Inventor： Michael Kopietz ,  Ulrich Kalck ,  Simon Jones ,  Peter Bassler ,  Claus-Ulrich Priester

IPC: C07D201/12

CPC classification number: C07D201/12

Abstract: Caprolactam is obtained from mixtures which contain polymers or thermoplastic molding materials having the repeating unit--N(H)--(CH.sub.2).sub.5 --C(O)--(a) by cleavage at elevated temperatures in the presence of a base under reduced pressure or (b) in the presence of water, by using a mixture essentially comprisingfrom 50 to 99.9% by weight of a polymer or of a thermoplastic molding material having the repeating unit--N(H)--(CH.sub.2).sub.5 --C(O)--from 0.1 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,and carrying out the cleavage in the presence of a base under reduced pressure, the water content of the mixture used being not more than 0.01% by weight, or carrying out the cleavage in the presence of water without the addition of acid or base at from 270.degree. to 350.degree. C. and a weight ratio of water to polymer or thermoplastic molding material of from 1:1 to 20:1 and in a reaction time of less than 3 hours.

Abstract translation: 己内酰胺由含有聚合物或具有重复单元-N（H） - （CH 2）5 -C（O） - （a）的聚合物或热塑性模塑材料的混合物获得，通过在碱的存在下在减压下在升高的温度下裂解，或 （B）在水的存在下，通过使用基本上包含50-99.9重量％的聚合物或具有重复单元-N（H） - （CH 2）5 -C（O）的热塑性模塑材料的混合物， - 0.1至50重量％的选自无机填料，有机和无机颜料和染料的添加剂，0至10重量％的有机和/或无机添加剂，0至40重量％的非 - 聚酰胺的聚合物和0〜20重量％的聚酰胺，但是由己内酰胺制备的聚己内酰胺和共聚酰胺除外，在减压下在碱的存在下进行裂解，所用混合物的水含量为 不大于0.01重量％，或进行切割 在没有在270-350℃下加入酸或碱的水存在下，水与聚合物或热塑性成型材料的重量比为1:1至20:1，反应时间小于 3小时。

公开(公告)号：US06291579B1

公开(公告)日：2001-09-18

申请号：US09331271

申请日：1999-07-27

Applicant: Ulrich Kalck ,  Joachim Woltering ,  Maximilian Bendix ,  Heike Schuchmann ,  Klaus Borho ,  Werner Weinle ,  Michael Schiessl ,  Sven Rück ,  Markus Antonietti

Inventor： Ulrich Kalck ,  Joachim Woltering ,  Maximilian Bendix ,  Heike Schuchmann ,  Klaus Borho ,  Werner Weinle ,  Michael Schiessl ,  Sven Rück ,  Markus Antonietti

IPC: C08L3106

CPC classification number: C08G18/0866 ,  C08G2150/20 ,  C09D5/02 ,  C09D163/00 ,  C09D175/04

Abstract: The invention relates to a process for preparing an aqueous powder coating dispersion, which comprises introducing a liquid melt comprising binders and crosslinking agents and also, if desired, catalysts, auxiliaries and further additives such as devolatilizers, UV absorbers, free-radical scavengers and/or antioxidants into an emulsifying apparatus, preferably with the addition of water and stabilizers, and cooling and filtering the resultant emulsion.

Abstract translation: 本发明涉及一种制备水性粉末涂料分散体的方法，该方法包括引入包含粘合剂和交联剂的液体熔体，以及如果需要，引入催化剂，助剂和其它添加剂，例如脱挥发分剂，UV吸收剂，自由基清除剂和/ 或抗氧化剂加入乳化装置中，优选加入水和稳定剂，并冷却和过滤所得乳液。

公开(公告)号：US5536831A

公开(公告)日：1996-07-16

申请号：US355285

申请日：1994-12-12

Applicant: Michael Kopietz ,  Alan Handerman ,  Simon Jones ,  Ulrich Kalck ,  Claus-Ulrich Priester ,  Heinz Auer ,  Josef Ritz ,  Hugo Fuchs ,  Paul Pijl

Inventor： Michael Kopietz ,  Alan Handerman ,  Simon Jones ,  Ulrich Kalck ,  Claus-Ulrich Priester ,  Heinz Auer ,  Josef Ritz ,  Hugo Fuchs ,  Paul Pijl

IPC: B01J8/10 ,  C07D201/12 ,  C08G69/14 ,  C08J11/16

CPC classification number: C07D201/12

Abstract: Caprolactam is obtained from caprolactam-containing polymers in the presence of a base under reduced pressure by depolymerizing polymers which contain the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--] or mixtures consisting essentially offrom 50 to 99.99% by weight of a polymer containing the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--]--from 0.01 to 50% by weight of additives selected from the group consisting of inorganic fillers, organic and inorganic pigments and dyes,from 0 to 10% by weight of organic and/or inorganic additives,from 0 to 40% by weight of non-polyamide-containing polymers andfrom 0 to 20% by weight of polyamides, with the exception of polycaprolactam and copolyamides prepared from caprolactam,in at least two depolymerization reactors connected in series.

Abstract translation: 己内酰胺通过在碱存在下在减压下由含有重复单元 - [ - N（H） - （CH 2）5 -C（O） - ]的聚合物或基本上由 50至99.99重量％的含有重复单元的聚合物 - [ - N（H） - （CH 2）5 -C（O） - ] - 0.01至50重量％的选自无机填料 有机和无机颜料和染料，0至10重量％的有机和/或无机添加剂，0至40重量％的非聚酰胺聚合物和0至20重量％的聚酰胺，其中 在由至少两个解聚反应器串联连接的己内酰胺制备的聚己内酰胺和共聚酰胺的例外。