Darin J Grinsteinner

US Patent:

20210309851, Oct 7, 2021

Filed:

Feb 12, 2021

Appl. No.:

17/175149

Inventors:

- Irving TX, US
Sung Hye Kim - Cincinnati OH, US
Christopher McGrady - Walton KY, US
Xinyu Zhao - Cincinnati OH, US
Darin Grinsteinner - Fort Mitchell KY, US

International Classification:

C08L 71/02

Abstract:

A binder composition containing a polyoxymethylene polymer combined with one or more plasticizers is disclosed that is well suited for use in powder injection molding processes. The binder composition can be combined with inorganic sinterable particles and melt blended together to form a feedstock. The feedstock can be fed through an injection molding process to form a green body. The binder composition of the present disclosure can be easily removed from the green body by contacting the green body with one or more acids. The resulting brown body can then be fed through a sintering process for producing three-dimensional articles having complex shapes.

US Patent:

20210070983, Mar 11, 2021

Filed:

Aug 18, 2020

Appl. No.:

16/995874

Inventors:

- Florence KY, US
Darin Grinsteinner - Fort Mitchell KY, US

International Classification:

C08L 67/04
C08G 63/60
C08K 7/28
C08K 7/14
C08K 7/10
C08K 3/40
C08K 3/34
C08K 3/22
C08K 13/04
H01R 13/03

Abstract:

A polymer composition is disclosed that comprises a polymer matrix containing at least one thermotropic liquid crystalline polymer and at least one hollow inorganic filler having a dielectric constant of about 3.0 or less at a frequency of 100 MHz wherein the weight ratio of the at least one thermotropic liquid crystalline polymer to the at least one hollow inorganic filler is from about 0.1 to about 10 and wherein the polymer composition exhibits a dielectric constant of about 4 or less and a dissipation factor of about 0.02 or less, as determined at a frequency of 10 GHz.

US Patent:

20190270260, Sep 5, 2019

Filed:

Feb 19, 2019

Appl. No.:

16/279035

Inventors:

- Florence KY, US
Darin Grinsteinner - Fort Mitchell KY, US

International Classification:

B29C 70/20
B29C 70/44
C08L 23/12
C08L 23/14
C08K 7/14
C08K 5/00
C08K 5/38
C08K 5/527
C08K 5/3492
C08K 5/105

Abstract:

A fiber-reinforced polymer composition that comprises a polymer matrix that contains a propylene polymer is provided. The polymer matrix constitutes from about 20 wt. % to about 90 wt. % of the composition, and the composition further comprises a plurality of long reinforcing fibers that are distributed within the polymer matrix, wherein the fibers constitute from about 10 wt. % to about 60 wt. % of the composition. Further, the composition also comprises a stabilizer system comprising a sterically hindered phenol antioxidant, phosphite antioxidant, and thioester antioxidant.

US Patent:

20150225023, Aug 13, 2015

Filed:

Jul 25, 2013

Appl. No.:

14/415646

Inventors:

- Winona MN, US
Darin J. Grinsteinner - Holmen WI, US
Larry E. Tiedermann - Winona WI, US

Assignee:

CPI Binani, INC. - Wiinona MN

International Classification:

B62D 29/04
B62D 25/06
B29C 43/18

Abstract:

A one-piece polymeric composite rafter, a method of forming a one-piece polymeric composite rafter and a vehicle that includes the one-piece polymeric composite rafter. The one-piece polymeric composite rafter includes a first elongate beam, a second elongate beam, a first fastening portion having a first ledge projecting between a first end wall of the first elongate beam and a first end wall of the second elongate beam, where the first fastening portion projects longitudinally beyond the first end of the first elongate beam towards the first end of the second elongate beam; and a second fastening portion having a second ledge projecting between a second end wall of the first elongate beam and a second end wall of the second elongate beam, where the second fastening portion projects longitudinally beyond the second end of the first elongate beam towards the second end of the second elongate beam.