Basf Se Corporation

Albis Plastic Gmbh

Basf Italia S.r.l.

Edoardo Menozzi

Massimiliano Sala

Kai-Uwe Schöning

Björn Ludolph

Anna Bassi

Holger Hoppe

Gérard Lips

Enrico Galfré

Martin Weber

Nicole Janssen

Martin Heijnen

Enrico Galfre

Thomas Weiss

Michael Roth

Hartwig Voss

Jacek Malisz

Yijun Ye

Mauro Mazzini

Nazzareno Ruggeri

Thomas Weiß

Enrico GalfrÉ

Polyethers (A), whose main chain essentially consists of repeating units of the formulae (1) and (2) in alternating order, are useful as an additive to a porous polymer membrane, or as the main polymer constituent of a porous polymer membrane, for stabilizing said membrane against detrimental effects of oxidizing agents and/or for improving the stability of a filtration module comprising said membrane against detrimental effects of oxidizing agents. 

Improving the chemical stability of filtration membranes

Process for making a membrane M comprising the following steps: a) preparing a copolymer C, wherein said copolymer C comprises blocks of at least one polyarylene ether A and blocks of polyalkylene oxide PAO, wherein the content of polyethyleneoxide in copolymer C is 30 to 90% by weight and wherein copolymer C is prepared in a solvent L to yield solution S; b) providing a dope solution D comprising at least one polymer P; c) mixing solution S and dope solution D; d) preparing a membrane by bringing the mixture of solution S and dope solution D into contact with at least one coagulating agent.

Process for making membranes

Disclosed herein is a compound of the formula (I), wherein one or two radicals of the radicals Rare independently of one another C-Calkyloxy or C-Ccycloalkyloxy and the remaining radicals Rare independently of one another hydrogen, C1-Calkyl or C-Ccycloalkyl; the radicals Rand Rare independently of one another hydrogen, C-Calkyl, C-Ccycloalkyl or a group of the formula (II-a) with Rbeing hydrogen, C-Calkyl, C-Ccycloalkyl, C-Calkyloxy or C-Ccycloalkyloxy; Y is C-Calkylene; m is 0 or 1; n is 1, 2 or 3; when n is 1, X is hydrogen, C-Calkyl, C-Ccycloalkyl or a group of the formula (II-a); when n is 2, X is C-Calkylene; when n is 3, X is a group N(Z&#x2014;)with Z being C-Calkyl. 

Sterically hindered amine light stabilizers with a mixed functionalization

The present invention relates to oxygen-substituted sterically hindered amines of the formulae I or II: (II), wherein, for example, F, R, R, R, R, R, R, R, R, Rare n-butyl: Zto Zare propoxy and R, R, R, R, Rare 2,2,6,6-tetramethyl-1-propoxy-piperidin-4-yl. Compositions comprising compounds of formulae I or II and an organic material, which is susceptible to oxidative, thermal or light-induced degradation, are further disclosed. Optionally, further additives are contained.

Sterically hindered amine stabilizer

A compound of the formula (I) wherein m and n are independently of one another a number from 1 to 50; the ratio of m/n is 1:10 to 10:1, the recurring units X can have the same definition or different definitions, the recurring units Y can have the same definition or different definitions and the recurring units X and Y can have a random, alternating or block distribution; the recurring unit X is a group of the formula (I-a) and the recurring unit Y is a group of the formula (I-b) the radicals Rindependently of one another are C-Calkyl or C-Ccycloalkyl; the radicals Rand Rare independently of one another C-Calkyl; the radicals R3 are independently of one another hydrogen, C-Calkyl or C-Ccycloalkyl. 

Oligomeric light stabilizers with a specific functionalization

A compound of the formula (I), wherein one or two radicals of the radicals Rare independently of one another C-Calkyloxy or C-Ccycloalkyloxy and the remaining radicals Rare independently of one another hydrogen, C-Calkyl or C-Ccycloalkyl; the radicals Rand Rare independently of one another hydrogen, C-Calkyl, C-Ccycloalkyl or a group of the formula (II-a) with Rbeing hydrogen, C-Calkyl, C-Ccycloalkyl, C-Calkyloxy or C-Ccycloalkyloxy; Y is C-Calkylene; m is 0 or 1; n is 1, 2 or 3; when n is 1, X is hydrogen, C-Calkyl, C-Ccycloalkyl or a group of the formula (II-a); when n is 2, X is C-Calkylene; when n is 3, X is a group N(Z&#x2014;)with Z being C-Calkyl. 

An oxygen-scavenging composition containing (I) a polymeric resin, (II) an organic oxidation additive based on a cyclic oxyimide, (III) a metal salt, preferably a transition metal salt, (IV) a sacrificial oxidizable substrate, and optionally, (V) an additional component; wherein components (I) and (IV) are different.

Use of protected N-hydroxyimide derivates and transition metal as oxygen scavenger system in transparent polyolefin films

An oxygen scavenger composition for food packaging application comprising (I) a polymeric resin, (II) one or more oligomeric photosensitizers, (III) a metal salt, preferably Cu stearate or Mn stearate; (IV) a sacrificial oxidizable substrate, and optionally (V) additional components.

Use of photosensitive molecules and metal complexes as oxygen scavenger elements

Use of thermoplastic elastomer to increase oxygen scavenger activity of functionalized polyolefin films. An oxygen-scavenging composition comprising (I) an oxidizable metal component, (II) an electrolyte component, (III) a non-electrolytic, acidifying component, and (IV) a copolyester or copolyamide thermoplastic elastomer.

Use of thermoplastic copolyester or copolyamide elastomer to increase functionalized polyolefin films

An oxygen-scavenging composition comprising (I) an oxidizable metal component, (II) an electrolyte component, (III) a non-electrolytic, acidifying component, and (IV) a non ionic surfactant component, preferably selected from the group consisting of alkyl polyethylene glycol ethers, polyethylene glycols, polypropylene glycols, polypropylene glycol polyethylene glycol block copolymers and polyethylene polyethylene glycol block copolymers.

Use of non-ionic surfactants to increase oxygen scavenger activity of functionalized polyolefin films

The present invention relates to oxygen-substituted sterically hindered amines of the formulae I or II: (II), wherein, for example, F, R, R, R, R, R, R, R, R, Rare n-butyl; Zto Zare propoxy and R, R, R, R, Rare 2,2,6,6-tetramethyl-1-propoxy-piperidin-4-yl. Compositions comprising compounds of formulae I or II and an organic material, which is susceptible to oxidative, thermal or light-induced degradation, are further disclosed. Optionally, further additives are contained. 

Thermoplastic molding compositions comprising A) from 10 to 99.8% by weight of a thermoplastic polyamide, B) from 0.1 to 60% by weight of red phosphorus, C) from 0.05 to 20% by weight of a stabilizer mixture C) composed of, based on 100% of C), 

Mixtures of silver and zinc oxide as stabilizer for flame-retardant polyamides

An oxygen-scavenging mixture comprising: (I) an oxidizable metal component; (II) an electrolyte component selected from the group consisting of KCl and CaCl, and (III) a non-electrolytic, acidifying component.

Growing community of inventors

Basel, Switzerland

Edoardo Menozzi