The present invention relates to oxygen-substituted sterically hindered amines of the formulae I or II: (II), wherein, for example, F
2
, R
3
, R
5
, R
6
, R
8
, R
9
, R
11
, R
12
, R
13
, R
14
are n-butyl; Z
1
to Z
10
are propoxy and R
1
, R
4
, R
7
, R
10
, R
13
are 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.
HALOGEN-FREE SULPHONIC ACID ESTER AND/OR SULPHINIC ACID ESTER AS FLAME RETARDANT, FLAME RETARDANT SYNERGISTS AND RADICAL GENERATORS IN PLASTICS
申请人:FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
公开号:US20200231783A1
公开(公告)日:2020-07-23
The present invention relates to the use of halogen-free sulphonic acid esters and/or sulphinic acid esters as flame retardant and/or flame retardant synergists in plastics. The invention furthermore relates to the use of said compounds as radical generators in plastics, particularly in order to increase the molecular weight of the plastics, to branch and/or cross-link the plastics, to reduce the molecular weight of the plastics, to influence the molecular weight distribution of the plastics and to graft unsaturated monomers to the plastics. The present invention furthermore relates to the use of flame-retardant plastic compositions in the electrical or electronics industry, construction industry, transport industry, preferably automobiles, aircraft, trains and ships, for medical applications, for household appliances, vehicle parts, consumer products, packaging, furniture and textiles.
METHOD FOR STABILIZING HALOGEN-FREE THERMOPLASTIC RECYCLATES, STABILIZED PLASTIC COMPOSITIONS, AND MOLDING COMPOUNDS AND MOLDED PARTS PRODUCED THEREFROM
申请人:FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
公开号:US20200317886A1
公开(公告)日:2020-10-08
The invention relates to a method for stabilizing halogen-free thermoplastic recyclates or pre-damaged plastics against oxidative, thermal, and/or actinic degradation. In the method according to the invention, at least one alditol or cyclitol is introduced into a halogen-free thermoplastic recyclate as a component, and optionally in addition thereto, at least one primary antioxidant and/or at least one secondary antioxidant is introduced into a halogen-free thermoplastic recyclate. By virtue of the method according to the invention, plastic recyclates can be stabilized against oxidative, thermal, and/or actinic degradation with a high degree of effectiveness and in a very environmentally friendly and inexpensive manner. The invention additionally relates to corresponding recyclate-based plastic compositions, to molding compound and molded parts produced therefrom, to stabilizer compositions, and to the use thereof for stabilizing halogen-free thermoplastic recyclates against oxidative, thermal, and/or actinic degradation.
EFFICIENT PHOSPHOROUS STABILISERS BASED ON DIPHENYLAMINE AND HETEROCYCLIC DIPHENYLAMINE DERIVATIVES
申请人:FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
公开号:US20210130582A1
公开(公告)日:2021-05-06
The present invention relates to the use of efficient phosphorous substances, in particular based on diphenylamine and heterocyclic diphenylamine derivatives as stabilizers for organic materials, in particular for plastic materials, against oxidative, thermal and/or actinic degradation. Te present invention additionally relates to an organic material that has been correspondingly stabilized as described above. The invention further relates to a method of stabilizing organic materials and to specific stabilizers.
METHOD OF STABILIZING VIRGIN THERMOPLASTIC MATERIAL AND STABILIZED PLASTICS COMPOSITIONS, MOULDING COMPOUNDS AND MOULDINGS PRODUCED THEREFROM, STABILIZER COMPOSITIONS AND USES THEREOF
申请人:FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
公开号:US20210388176A1
公开(公告)日:2021-12-16
The present invention relates to a method of stabilizing virgin thermoplastic material against oxidative, thermal and/or actinic degradation. In the method of the invention, at least one polyphenol and at least one alditol and/or cyclitol are introduced into a virgin thermoplastic material. The method of the invention can stabilize virgin thermoplastic material with high efficacy and in a very environmentally friendly and inexpensive manner against oxidative, thermal and/or actinic degradation. The present invention additionally also relates to correspondingly stabilized virgin thermoplastic material and to moulding compounds and mouldings produced therefrom. The present invention also further relates to stabilizer compositions and to the use thereof for stabilization of virgin thermoplastic material against oxidative, thermal and/or actinic degradation.