公开(公告)号：US20210299740A1

公开(公告)日：2021-09-30

申请号：US17261130

申请日：2019-07-19

申请人： ASK Chemicals GmbH

发明人： Christian PRIEBE ,  Markus BUNG ,  Sarah VOSS ,  Jörg KÖRSCHGEN

IPC分类号： B22C3/00 ,  B22C1/22 ,  B22C9/12 ,  B22C9/02 ,  C09D1/00 ,  C09D7/63

摘要： The subject matter of the invention are sizing compositions containing an aqueous carrier liquid, refractory base materials and CH-acidic compounds, as well as their use for casting molds, as well as casting molds coated with the sizing composition.

公开(公告)号：US20170050237A1

公开(公告)日：2017-02-23

申请号：US15308398

申请日：2015-04-30

申请人： ASK CHEMICALS GMBH

发明人： Jörg KÖRSCHGEN ,  Christian PRIEBE ,  Pierre-Henri VACELET

IPC分类号： B22C1/22 ,  B22C1/10 ,  B22C9/02 ,  C04B35/14 ,  B22C9/12

CPC分类号： B22C1/2253 ,  B22C1/10 ,  B22C9/02 ,  B22C9/123 ,  C04B35/14

摘要： The invention relates to mold material mixtures for producing molds and cores for metal casting, consisting of at least one refractory material, a binder based on resols and amorphous silicon dioxide. The invention also relates to a multicomponent system and methods for producing molds and cores using the mold material mixtures as well as molds and cores for metal casting produced according to this method.

摘要翻译： 本发明涉及用于生产用于金属铸造的模具和芯的模具材料混合物，其由至少一种耐火材料，基于甲阶酚醛树脂和无定形二氧化硅的粘合剂组成。 本发明还涉及使用模具材料混合物以及根据该方法生产的用于金属铸造的模具和芯的生产模具和芯的多组分系统和方法。

公开(公告)号：US20200316674A1

公开(公告)日：2020-10-08

申请号：US16472441

申请日：2017-12-22

申请人： ASK Chemicals GmbH

发明人： Christian PRIEBE ,  Jens MÜLLER ,  Heinz DETERS ,  Philip SCHNEIDER ,  Frank LENZEN ,  Markus DÖRSCHEL

IPC分类号： B22C1/22 ,  B22C1/16 ,  C08G18/54 ,  C08G18/76 ,  C08K5/5415 ,  B22C9/12

摘要： The object of the invention is a component system for producing a binder for metal casting on the basis of phenolic resins of the benzyl ether type and isocyanates containing non-polar solvents.

公开(公告)号：US20240270661A1

公开(公告)日：2024-08-15

申请号：US18569919

申请日：2022-06-23

申请人： ASK CHEMICALS GMBH

发明人： Christian PRIEBE ,  Jan KLESING

IPC分类号： C05G5/30 ,  C05G5/12

CPC分类号： C05G5/37 ,  C05G5/12

摘要： The present invention relates to a coated granular substance, wherein the coating is obtained by curing a binder, wherein the binder comprises: one or more benzyl ether-type phenolic resins: an isocyanate formulation consisting of one or more isocyanate compounds having at least 2 isocyanate groups per molecule: wherein the binder is further characterized by one or both of the following features: a) the binder contains free phenol and free hydroxybenzyl alcohol, wherein at least about 1.2 parts by weight of free hydroxybenzyl alcohol per 1 part by weight of free phenol is contained in the binder: b) the binder contains free phenol and free saligenin (o-hydroxybenzyl alcohol), wherein at least about 1.1 parts by weight of free saligenin (o-hydroxy benzyl alcohol) per 1 part by weight of free phenol is contained in the binder: wherein the granular substance is selected from agrochemicals. Furthermore, the invention relates to a method for producing the coated granular substance and the use of the binder for coating a granular substance.

公开(公告)号：US20210087327A1

公开(公告)日：2021-03-25

申请号：US16961467

申请日：2019-01-11

申请人： ASK Chemicals GmbH

发明人： Christian PRIEBE

IPC分类号： C08G18/54 ,  C08G8/10 ,  C08K5/11 ,  C08K5/101 ,  C08K5/07 ,  C08K5/09 ,  C08K5/13 ,  B29C33/38

摘要： Benzyl ether-type phenolic resins are useful in either a phenolic resin polyurethane cold-box (PUCB) process or a phenolic resin polyurethane no-bake (PUNB) process. The benzyl ether-type phenolic resins contain at least one formaldehyde scavenger in the form of a beta-dicarbonyl compound, and an alpha-carbonyl-carboxyl compound, particularly glyoxylic acid, binders based on these phenolic resins, and isocyanate compounds having at least two isocyanate groups. The resins having the inventive concept exhibit low free formaldehyde content. The inventive concept extends to molding material blends containing the binder, and a method for producing cores, molds or risers.

公开(公告)号：US20170165743A1

公开(公告)日：2017-06-15

申请号：US15327157

申请日：2015-07-20

申请人： ASK Chemicals GmbH

发明人： Gunter SCHAFFER ,  Christian PRIEBE ,  Michael ARNDT-ROSENAU

IPC分类号： B22C9/02 ,  C08G18/79 ,  B22C1/18 ,  B22C1/16 ,  B22C1/22 ,  C08G18/54 ,  C08G18/16

CPC分类号： B22C9/02 ,  B22C1/00 ,  B22C1/162 ,  B22C1/181 ,  B22C1/186 ,  B22C1/2273 ,  B22C1/2293 ,  C08G18/163 ,  C08G18/54 ,  C08G18/542 ,  C08G18/797

摘要： The subject matter of the present invention is a binder system containing blocked tertiary amines or amidines as co-catalysts for a polyurethane cold-box application. It also relates to the molding material mixtures produced using such a binder system further comprising volatile tertiary amines, a method for producing the molding material mixtures, and the cores and molds made from the molding material mixtures according to the cold-box process.