Abstract: This disclosure relates to a method and an apparatus for the delivery of a multi-component olefin polymerization catalyst to a polymerization reactor. The components soluble in a first solvent are delivered under pressure along with that solvent in a first delivery conduit. The components that are insoluble in the first solvent but are soluble in a second solvent are delivered under pressure in a second delivery conduit which is arranged coaxially with and disposed within the first conduit, such that the inner conduit and outer conduit terminate at a common catalyst component mixing conduit which extends into the polymerization reactor and in which the catalyst components mix to form an active polymerization catalyst.
Type:
Application
Filed:
June 25, 2019
Publication date:
February 20, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
Stephen Brown, Eric Clavelle, Geoffrey Harding
Abstract: The invention provides a drug delivery system in which a drug or another active substance is delivered from the surface of an inactive, placebo carrier. The system uses a placebo tablet carrier having a concavity or multiple concavities in the top surface for receiving a drug. After manufacture of the placebo tablet carrier, a dosage of the drug in liquid or semisolid form is deposited in the concavity and solidifies as a dot or disk on the tablet surface. Thus, the drug is carried on the surface of the tablet and is not part of the tablet bulk. The drug delivery system is particularly useful for delivery of low dose (i.e. potent) drugs, for delivery of multiple doses of a drug, or for delivery of multiple types of drugs. Additionally, the invention provides methods for preparation of the inventive drug delivery systems.
Abstract: A continuous solution polymerization process is disclosed wherein at least two catalyst formulations are employed. A first homogeneous catalyst formulation is employed in a first reactor to produce a first ethylene interpolymer and a first heterogeneous catalyst formulation is employed in a second reactor to produce a second ethylene interpolymer. Optionally a third ethylene interpolymer is formed in a third reactor. The resulting ethylene interpolymer products possess desirable properties in a variety of end use applications, for example in film applications. A means for increasing the molecular weight of the first ethylene interpolymer is disclosed and/or a means for increasing the temperature of the first reactor, relative to a third homogeneous catalyst formulation. A means for reducing the (?-olefin/ethylene) weight ratio in the first reactor is disclosed and/or reducing the density of the first ethylene interpolymer, relative to a third homogeneous catalyst formulation.
Type:
Application
Filed:
August 30, 2019
Publication date:
February 20, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
Zengrong Zhang, Niousha Kazemi, Stephen Salomons, Monika Kleczek, Mehdi Keshtkar, Brian Molloy, Qinyan Wang, Peter Zoricak, Charles Carter, XiaoChuan Wang, Christopher Dobbin, Fazle Sibtain, Kenneth Taylor, Lawrence VanAsseldonk, Hamidreza Khakdaman
Abstract: A manually assisted robot inventory monitoring method provides for detecting and reading shelf labels using an autonomous robot. Bounding boxes around possible products in a panoramic image can be taken with at least one camera associated with the autonomous robot. Products in the bounding boxes are automatically identified, with those that are not being later manually identified.
Type:
Grant
Filed:
March 28, 2017
Date of Patent:
February 18, 2020
Assignee:
BOSSA NOVA ROBOTICS IP, INC.
Inventors:
Sarjoun Skaff, Jonathan Davis Taylor, Stephen Vincent Williams, Simant Dube
Abstract: A method and system are presented for use in measuring one or more characteristics of patterned structures. The method comprises: providing measured data comprising data indicative of at least one Raman spectrum obtained from a patterned structure under measurements using at least one selected optical measurement scheme each with a predetermined configuration of at least one of illuminating and collected light conditions corresponding to the characteristic(s) to be measured; processing the measured data, and determining, for each of the at least one Raman spectrum, a distribution of Raman-contribution efficiency (RCE) within at least a part of the structure under measurements, being dependent on characteristics of the structure and the predetermined configuration of the at least one of illuminating and collected light conditions in the respective optical measurement scheme; analyzing the distribution of Raman-contribution efficiency and determining the characteristic(s) of the structure.
Type:
Grant
Filed:
December 15, 2016
Date of Patent:
February 18, 2020
Assignee:
NOVA MEASURING INSTRUMENTS LTD.
Inventors:
Gilad Barak, Yanir Hainick, Yonatan Oren, Vladimir Machavariani
Abstract: The present disclosure relates to systems including a ternary stabilization package that contains a first phosphite, a second phosphite and a primary antioxidant is used in combination with a polyethylene that is polymerized with a mixed catalyst system that contains two different types of catalysts. In some embodiments the stabilized polyethylene exhibits improved color performance.
Type:
Grant
Filed:
December 21, 2017
Date of Patent:
February 18, 2020
Assignee:
NOVA Chemicals (International) S.A.
Inventors:
Derek Wasylenko, Tony Tikuisis, Owen Lightbody, Fraser Waldie
Abstract: Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20AlcOd wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt. % amorphous as measured by XRD. The disclosure also provides methods of making the compositions.
Type:
Application
Filed:
August 1, 2019
Publication date:
February 6, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
Vasily Simanzhenkov, Xiaoliang Gao, Marie Barnes, David Sullivan, Yoonhee Kim
Abstract: Rotomolded polyethylene containers that are used to store sulfuric acid can become discolored on the interior surface which is in contact with the acid. This problem may be mitigated by the use of an additive package that contains two primary antioxidants.
Type:
Application
Filed:
August 2, 2018
Publication date:
February 6, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
Henry Hay, Derek Wasylenko, Tony Tikuisis, Gilbert Arnould
Abstract: Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20Od wherein d is a number to satisfy the valence of the oxide. The oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2? degrees) at 22±0.2, 27±0.2, 28.0±0.2, and 28.3±0.1. The disclosure also provides methods of making the catalysts that include wet ball milling.
Type:
Application
Filed:
August 1, 2019
Publication date:
February 6, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
Vasily Simanzhenkov, Xiaoliang Gao, Marie Barnes, David Sullivan, Yoonhee Kim, Perry de Wit
Abstract: In a stirred tank chemical reactor the mean age of the reactor contents affects a number of properties of the product, including for example the homogeneity of the product. The mean average age of the reactor contents can be determined by constructing a transparent model of the reactor and filling it with a fluid containing a fluorescent dye and having flow properties comparable to those of the reactor in use. A light is shone on the fluid as it is stirred under reaction conditions and a clear fluid flow into the model. Pictures are taken of the reactor contents and the mean fluid age of the contents of the model are determined relative to the exit age of the contents. This approach can be applied to determine for example which reactor ports to use, what agitator to use, what flow rates to use to improve reactor function.
Abstract: Oxidative dehydrogenation is an alternative to the energy extensive steam cracking process presently used for the production of olefins from paraffins, but has not been implemented commercially partially due to the unstable nature of hydrocarbon/oxygen mixtures, and partially due to the cost involved in the construction of new facilities. An oxidative dehydrogenation chemical complex designed to reduce costs by including integration of an oxygen separation module that also addresses safety concerns and reduces emission of greenhouse gases is described.
Type:
Grant
Filed:
May 8, 2019
Date of Patent:
January 21, 2020
Assignee:
NOVA Chemicals (International) S.A.
Inventors:
Kamal Serhal, Vasily Simanzhenkov, Shahin Goodarznia, David Gent, Mark Williamson
Abstract: This disclosure relates to a continuous solution three reactor polymerization process. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst system are injected into a first and second reactor configured in parallel to one another. A third reactor receives effluent from the first reactor, the second reactor, or a combination of the first and second reactors. Fresh monomer is feed to the third reactor for further polymerization and to give a final polyethylene product.
Type:
Grant
Filed:
April 19, 2017
Date of Patent:
January 21, 2020
Assignee:
NOVA Chemicals (International) S.A.
Inventors:
XiaoChuan Wang, Niousha Kazemi, Stephen Brown, Lawrence VanAsseldonk, Stephen Salomons
Abstract: A polyethylene composition includes a first polyethylene which is an ethylene copolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular weight distribution Mw/Mn of <2.3, a second polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of from 15,000 to 100,000, a molecular weight distribution Mw/Mn of >2.3, and a third polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular weight distribution Mw/Mn of >2.3, where the first polyethylene has more short chain branching than the second polyethylene or the third polyethylene. The polyethylene composition has a soluble fraction in a CEF analysis of at least 10 weight percent. Film made from the polyethylene composition may have a machine direction 1% secant modulus of ?200 MPa (at a film thickness of about 1 mil), a seal initiation temperature (SIT) of ?90° C.
Type:
Application
Filed:
July 11, 2019
Publication date:
January 16, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
XiaoChuan Wang, Peter Zoricak, Brian Molloy, Qinyan Wang, Lawrence VanAsseldonk, Norman Aubee
Abstract: A polyethylene composition comprises a first polyethylene which is an ethylene copolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular weight distribution Mw/Mn of <2.3, a second polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution Mw/Mn of <2.3, and a third polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of from 100,000 to 300,000 and a molecular weight distribution Mw/Mn of >2.3, where the first polyethylene has more short chain branching than the second polyethylene or the third polyethylene. The polyethylene composition has a soluble fraction in a CEF analysis of at least 15 weight percent.
Type:
Application
Filed:
July 10, 2019
Publication date:
January 16, 2020
Applicant:
NOVA Chemicals (International) S.A.
Inventors:
XiaoChuan Wang, Peter Zoricak, Brian Molloy, Qinyan Wang, Lawrence VanAsseldonk, Norman Aubee
Abstract: A new and distinct cultivar of Phygelius plant characterized by medium size deep red flowers, a long bloom time, an upright, well branched habit, with multiple crowns from the base, clean-looking, deep green foliage, and excellent vigor.
Abstract: A new and distinct cultivar of Phygelius plant characterized by purple-rose flowers, a long bloom time, an upright, well branched habit, with multiple crowns from the base, clean-looking, deep green foliage, and excellent vigor.
Abstract: A new and distinct Leucanthemum plant named ‘Lemon Puff’ characterized by double daisy type inflorescences, yellow inflorescence buds and young ray florets, fully open inflorescences that are medium sized and display numerous white and yellow ray florets around a gold disc, ray florets that are obelliptic to linear with mildly lacerated tips giving a more fluffy appearance to the inflorescence, excellent bloom number, a low, compact habit, and excellent vigor.
Abstract: A new and distinct Leucanthemum plant named ‘Shortstop’ characterized by semi-double daisy type inflorescences, yellow flower buds and young ray florets, fully open inflorescences displaying white ray florets around a large gold disc, excellent bloom number, a medium low, compact habit, and excellent vigor.
Abstract: A new and distinct Echinacea plant named ‘Embers Fever’ is characterized by an amazing number of inflorescences starting in the first season, deep, crimson red ray florets surrounding dark cones, long bloom time with excellent rebloom, excellent branching with large blooms on sturdy stems, and excellent vigor.