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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Henn; Rolf
Address:
Ketsch, DE
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
5563178 Expandable styrene polymers of high heat resistance October 8, 1996
An expandable styrene polymer comprisinga) from 0 to 90% by weight of a styrene polymer or styrene copolymer other than b) contains at least 50% by weight of copolymerized styrene,b) from 10 to 100% by weight of a styrene/methacrylamide copolymer comprising from 0.5 to 50% by weight of at le
5552450 Production of rigid polyurethane foams September 3, 1996
A process for the production of rigid polyurethane foams involves reactinga) organic and/or modified organic polyisocyanates withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) low-molecular-weight chain extenders and/
5525637 Expandable styrene polymers June 11, 1996
The invention relates to expandable styrene polymers for elastic polystyrene foams, comprisinga) from 50 to 90% by weight of polystyrene and/or a styrene copolymer containing at least 50% by weight of copolymerized styrene,b) from 5 to 30% by weight of at least one styrene-soluble elastomer,
5525636 Expandable styrene polymers June 11, 1996
The invention relates to expandable styrene polymers for elastic polystyrene foams, comprisinga) from 75 to 98% by weight of polystyrene and/or a styrene copolymer containing at least 50% by weight of copolymerized styrene,b) from 2 to 25% by weight of at least one styrene-soluble elastomer,
5498640 Expandable thermoplastic polymers containing organic boron-silicon compounds, and a process for March 12, 1996
Expandable thermoplastic polymers in particle form comprising a) at least one organic boron-silicon compound, b) at least one thermoplastic polymer and c) a blowing agent, a process for their preparation, and the foams produced using these expandable thermoplastic polymers.
5496864 Expandable styrene polymers March 5, 1996
The invention relates to expandable styrene polymers for elastic polystyrene foams, comprisinga) from 50 to 75% by weight of polystyrene and/or a styrene copolymer containing at least 50% by weight of copolymerized styrene,b) from 5 to 30% by weight of a styrene-soluble elastomer,c) from 5 t
5464881 Expandable styrene polymers of high heat resistance November 7, 1995
An expandable styrene polymer comprisinga) from 0 to 90% by weight of a styrene polymer or styrene copolymer other than b) contains at least 50% by weight of copolymerized styrene,b) from 10 to 100% by weight of a styrene/methacrylamide copolymer comprising from 0.5 to 50% by weight of at le
5429798 Deodorization of used foam moldings, in particular fish crates July 4, 1995
A process for the deodorization of used foam moldings, in which the used foam moldings are treateda) with an aqueous solution of phosphoric acid, water-soluble primary or secondary phosphates or mixtures thereof.
5340916 Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-polyols containing hydroxyl groups August 23, 1994
The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reactinga) a polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyol containing secondary hydro










 
 
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