| Patent Number |
Title Of Patent |
Date Issued |
| 7101929 |
Polyolefin films with improved processing properties |
September 5, 2006 |
| The present invention relates to a process for reducing water carry-over during the production of polyolefin films or polyolefin tapes which are passed through a waterbath, where the polyolefin formulation comprises polyolefin waxes. The results are that less water is carried over and |
| 6787591 |
Synergistic stabilizer compositions for themoplastic polymers in prolonged contact with water |
September 7, 2004 |
| The invention relates to synergistic stabilizer compositions comprising Hindered Amine Stabilizers (HAS), phenolic antioxidants, and, if appropriate, UV-absorbers, for thermoplastic polymers, especially for polyolefin pipes and other polyolefin molding materials, which are in prolong |
| 6646035 |
Synergistic combinations of phenolic antioxidants |
November 11, 2003 |
| The invention relates to synergistic combinations of certain phenolic antioxidants in thermoplastic polymers, especially in polyolefin pipes and other thermoplastic molding materials which are in prolonged contact with water. The instant combinations lead to better resistance against |
| 6491853 |
Storage-stable plastics additives |
December 10, 2002 |
| The present application relates to storage-stable plastics additives which are prepared by cooling a mixture of 99.9 to 10% by weight of molten additive material and 0.1 to 90% by weight of crystalline additive material after a shaping process.The shaping process is carried out by forcin |
| 6420461 |
Compounds based on polyalkyl-1-oxadiazaspirodecane compounds |
July 16, 2002 |
| The present invention relates to novel compounds of the formula (III) ##STR1##in which the substituents are as defined in the description, to a process for their preparation and to mixtures with other compounds. The compounds of the formula (III) are suitable for stabilizing organic mate |
| 6174940 |
Synergistic stabilizer mixture based on polyalkyl-1-oxa-diazaspirodecane compounds |
January 16, 2001 |
| The present invention relates to mixtures comprising the compound I in a proportion of 65-95% by weight, the compound II in a proportion of 5-35% by weight and the compound III in a proportion of 0-10% by weight ##STR1##wherein the substituents are as defined in the description, and to m |
| 5972248 |
Stabilizers based on 1-aza-2,2,6,6 tetramethybicyclo [3.1.0]hexane |
October 26, 1999 |
| The present invention relates to novel stabilizers of the formula (I) ##STR1## in which the substituents have the meaning defined in the description. These novel stabilizers are particularly suitable for stabilizing organic material, such as plastics, oils, paints and coatings, again |
| 5919933 |
Light stabilizers based on sterically hindered amines |
July 6, 1999 |
| The present invention relates to novel UV stabilizers of the formula (I) ##STR1## where the substituents are as defined in the description. These compounds are highly suitable for stabilizing organic material, such as plastics, surface coatings, paints and oils, against the action of |
| 5852159 |
Plastic with reduced sulfur uptake rate |
December 22, 1998 |
| The present invention relates to plastics comprising a high molecular weight, sterically hindered amine, wherein the sterically hindered amine is at least one amine from the group consisting ofI: oligomerized 2,2,4,4-tetramethyl-20(oxiranylmethyl)-7-oxa-3,20-diazadispiro[5.1.11.2]he n |
| 5633378 |
Polyalkylpiperidine compounds |
May 27, 1997 |
| Polyalkylpiperidine compounds of the formula I ##STR1## in which Y is the group ##STR2## are very effective stabilizers for organic materials. |
| 5550242 |
Process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds |
August 27, 1996 |
| The invention relates to a process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds, which can be used as highly active light stabilizers for polymers. The reaction is carried out in an inert organic solvent in the presence of solid alkali metal hydroxide or of the c |
| 5550234 |
Polyalkylpiperidine compounds |
August 27, 1996 |
| Polyalkylpiperidine compounds of the formula I ##STR1## in which Y is one of the groups ##STR2## are distinguished by very low volatility at elevated temperature and are very effective stabilizers for organic substances. |
