Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2006-11-07
2006-11-07
Sergent, Rabon (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
C521S050500, C522S090000, C522S174000, C525S453000, C528S075000
Reexamination Certificate
active
07132459
ABSTRACT:
The invention relates to a method for the production of polyurethane-based technical formed parts, commodity goods and objects, preferably consisting of (meth)acrylate containing isocyanate and hydroxy groups and at least 0.5 mMol/g reactive double bonds that can be determined using a DSC method. In a first step, a mixture of all starting constituents is produced and given a desired form using methods such as casting, pressing, rolling or extruding that are known per se in plastic engineering technology, whereby said mixture simultaneously or subsequently undergoes a non-radically triggered polyaddition reaction (urethane reaction) and a polyurethane substance is created in the form of a flexible, optionally elastic pre-form that can be deformed without any removal of said material. In a second step, the pre-form undergoes preferably mechanical shaping in addition to substantially emission-free hardening by means of radical polymerization of the free double bonds. The invention also relates to products that are manufactured using this method in addition to multiple applications thereof, such as directly in the place where they are used, in order to produce highly resistant shaped bodies and composite elements that can be used more particularly in fields such as medicine (e.g. surgery, orthopaedics, dental medicine), technology (e.g. civil engineering, the construction industry, motor vehicle production, insulation technology, measuring and lighting technology), the home, cosmetics and fine art.
REFERENCES:
patent: 4073828 (1978-02-01), Ferrarini et al.
patent: 4129641 (1978-12-01), Ferrarini et al.
patent: 4250005 (1981-02-01), Lamplugh
patent: 4287116 (1981-09-01), Burns
patent: 4787850 (1988-11-01), Michl et al.
patent: 5254604 (1993-10-01), Mori et al.
patent: 5286832 (1994-02-01), Verleg et al.
patent: 5609806 (1997-03-01), Walsh et al.
patent: 6114402 (2000-09-01), Smith
patent: 3127945 (1983-01-01), None
patent: 0262488 (1988-04-01), None
patent: 0269071 (1988-06-01), None
patent: 1512553 (1978-06-01), None
Ostrolenk Faber Gerb & Soffen, LLP
Sergent Rabon
LandOfFree
Moulded bodies made from a polyurethane material, production... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moulded bodies made from a polyurethane material, production..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moulded bodies made from a polyurethane material, production... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3628275