Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2010-10-13
2011-10-18
Seidleck, James J (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S156000, C524S525000, C524S221000, C524S323000, C524S414000, C524S242000, C525S230000, C525S525000, C525S222000, C525S191000
Reexamination Certificate
active
08039533
ABSTRACT:
Disclosed are a synthetic resin composition for use as building materials such as window frames, as well as a product manufactured using the same. More particularly, the synthetic resin composition comprises a tetrapolymer of acrylic rubber-styrene monomer-butadiene rubber-vinyl cyanide monomer and a styrene-vinyl cyanide copolymer having a high molecular weight and a high degree of dispersion. Unlike products manufactured using prior polyvinyl chloride (PVC), building material such as window frames manufactured using the synthetic resin composition are recyclable, and thus can contribute to a reduction in the generation of hormone-disrupting chemical dioxin, which is released in the burning thereof. Also, the resin composition can be manufactured into products having excellent properties of weather resistance and colorability without using environmental pollutants such as cadmium stearate or lead stearate, which are used as thermal stabilizers.
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Choi Jang Hyun
Ho Joo Yub
Kim Yun Hwan
Lee Seung Kyu
Korea Kumho Petrochemical Co. Ltd.
Seidleck James J
Steptoe & Johnson LLP
Valdez Deve E
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