23-04-2015 дата публикации
Номер: US20150112005A1
Автор:
Blaschke Chris E.,
Castelluccio Anthony J.,
Clark Lindsey A.,
DEAN Jeffrey J.,
Ewart Sean W.,
Fails Brandon,
Green Larry S.,
Jain Pradeep,
Kuhlman Roger L.,
Marchand Gary R.,
Sims Jeffrey A.,
Taha Angela N.,
Wang Alec Y.
Принадлежит:
Improved reaction processes comprise reacting a mixture to form a product comprising a metal alkyl, metal oxide, or mixture thereof and then passing said product to a post-reactor heat exchanger. The improvement comprises one or more of the following: 14-. (canceled)5. A reaction process comprising: (a) an ethylene/α-olefin multiblock interpolymer comprising at least 50 mole percent ethylene which is characterized before any crosslinking by one or more of the following characteristics:', '(1) an average block index greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3; or', '(2) at least one molecular fraction which elutes between 40° C. and 130° C. when fractionated using TREF, characterized in that the fraction has a block index of at least 0.5 and up to about 1; or', {'br': None, 'i': T', 'd', 'd, 'sub': 'm', 'sup': '2', '>−6553.3+13735()−7051.7(); or'}, '(3) an Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship, [{'br': None, 'i': T>−', 'H', 'H, 'Δ0.1299(Δ)+62.81 for Δgreater than zero and up to 130 J/g,'}, {'br': None, 'i': T≧', 'H, 'Δ48° C. for Δgreater than 130 J/g,'}], '(4) an Mw/Mn from about 1.7 to about 3.5, and a heat of fusion, ΔH in J/g, and a delta quantity, ΔT, in degrees Celsius defined as the temperature difference between the tallest DSC peak and the tallest CRYSTAF peak, wherein the numerical values of ΔT and ΔH have the following relationships, 'wherein the CRYSTAF peak is determined using at least 5 percent of the cumulative polymer, and if less than 5 percent of the polymer has an identifiable CRYSTAF peak, then the CRYSTAF temperature is 30° C.; or', {'br': None, 'i': Re>', 'd, '1481−1629(); or'}, '(5) an elastic recovery, Re, in percent at 300 percent strain and 1 cycle measured with a compression-molded film of the ethylene/α-olefin ...
Подробнее
