Patent classifications
C09D153/025
TRANSDERMAL DELIVERY SYSTEM CONTAINING METHYLPHENIDATE OR ITS SALTS AND METHODS THEREOF
Disclosed herein is a transdermal delivery system comprising methylphenidate or its salt as an active ingredient. Also provided are methods of delivering a therapeutically effective amount of methylphenidate to a subject for the treatment of a disease condition. The disease condition includes a neurological condition such as Attention Deficit Disorder (ADD) and/or Attention Deficit/Hyperactivity Disorder (ADHD). Kits including the transdermal delivery system and methods of making and using the transdermal delivery system are also provided.
Additives for fuels and oils comprising functionalised diblock copolymers
Concentrates containing specific functionalized diblock copolymers serve as effective additives for improving the cold flow behavior of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.
Additives for fuels and oils comprising functionalised diblock copolymers
Concentrates containing specific functionalized diblock copolymers serve as effective additives for improving the cold flow behavior of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.
High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications
The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hSBS) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hSBSS) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230 C. under 2.16 kg mass according to ASTM D1238. These block copolymers are novel and have the highest melt flow rate of any styrenic block copolymer also possessing high strength and elasticity. It has applications that prior to the present invention were not normally possible due to the normal low melt flow rate of styrenic block copolymers. The present invention also encompasses various fields of use such as a fiberglass hSBS or hSBSS reinforced mat, low viscosity hSBS or hSBSS coatings for industrial uses, hot melt adhesives prepared from hSBS or hSBSS blended with polyalpha-olefins, and elastic film, fiber, and nonwoven constructions using hSBS or hSBSS.
High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications
The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hSBS) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hSBSS) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230 C. under 2.16 kg mass according to ASTM D1238. These block copolymers are novel and have the highest melt flow rate of any styrenic block copolymer also possessing high strength and elasticity. It has applications that prior to the present invention were not normally possible due to the normal low melt flow rate of styrenic block copolymers. The present invention also encompasses various fields of use such as a fiberglass hSBS or hSBSS reinforced mat, low viscosity hSBS or hSBSS coatings for industrial uses, hot melt adhesives prepared from hSBS or hSBSS blended with polyalpha-olefins, and elastic film, fiber, and nonwoven constructions using hSBS or hSBSS.
ADDITIVES FOR FUELS AND OILS COMPRISING FUNCTIONALISED DIBLOCK COPOLYMERS
Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.
ADDITIVES FOR FUELS AND OILS COMPRISING FUNCTIONALISED DIBLOCK COPOLYMERS
Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.
COPOLYMER, COMPOSITION, VARNISH, AND CURED PRODUCTS OF THESE
An aromatic vinyl compound-aromatic polyene copolymer satisfies the following conditions: the copolymer has a number average molecular weight of between 500 and 100000; the aromatic vinyl compound monomer has between 8 and 20 carbon atoms, and the content of aromatic vinyl compound monomer units is more than 70 mass %; the aromatic polyene is selected from polyenes having between 5 and 20 carbon atoms and having a plurality of vinyl and/or vinylene groups in the molecule, and the content of the vinyl and/or vinylene groups derived from aromatic polyene units is 2 pieces or more and less than 30 pieces per number average molecular weight; one or more selected from olefin monomer units having between 2 and 20 carbon atoms may be included, wherein a total amount of the aromatic vinyl compound monomer units, the aromatic polyene monomer units, and the olefin monomer units, if present, is 100 mass %.
SULFONATED BLOCK COPOLYMER SEPARATOR AND ENERGY STORAGE DEVICE
The disclosure relates to a functionalized styrenic block copolymers (SSBC) in the form of a lithiated-sulfonated hydrogenated styrenic block copolymer (SO.sub.3Li-SBC). The composition is obtained by sulfonation of SBC precursor followed by neutralization of the ionic block of the sulfonated block copolymer (SSBC) by Li.sup.+ ion, modifying characteristics for use as a separator in energy storage device. The separator has high ionic conductivity, a high dimensional stability/low thermal contraction and good mechanical stability, more particularly a high elongation at break.
ADDITIVES FOR FUELS AND OILS COMPRISING FUNCTIONALISED DIBLOCK COPOLYMERS
Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.