US 11,754,479 B2
System for tear analysis of films
Sanjay C. Solanki, Midland, MI (US); Donald L. McCarty, II, Midland, MI (US); Robert A. Gunther, Midland, MI (US); Jin Wang, Midland, MI (US); Kyle A. Myers, Midland, MI (US); and Scott J. Collick, Midland, MI (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 16/630,746
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Apr. 30, 2018, PCT No. PCT/US2018/030210
§ 371(c)(1), (2) Date Jan. 13, 2020,
PCT Pub. No. WO2019/027518, PCT Pub. Date Feb. 7, 2019.
Claims priority of provisional application 62/539,399, filed on Jul. 31, 2017.
Prior Publication US 2020/0166442 A1, May 28, 2020
Int. Cl. G01N 3/08 (2006.01); G01N 33/44 (2006.01); G01N 33/34 (2006.01); G01N 33/36 (2006.01)
CPC G01N 3/08 (2013.01) [G01N 33/44 (2013.01); G01N 33/346 (2013.01); G01N 33/36 (2013.01); G01N 2203/0282 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for analyzing a physical characteristic of a film sample, the system comprising:
a material holder system configured to hold the film sample; and
a tear analysis device configured to tear the film sample by stretching the film sample and measure a characteristic of the tear;
a cutter configured to cut the film sample into a plurality of film specimens, wherein
a movable system is configured to move the film sample in the material holder system to the tear analysis device,
the cutter comprises a film support plate configured to hold the film sample during cutting, and a pressure plate configured to press the film sample against the film support plate,
wherein one of the film support plate and the pressure plate defines one or more tongues and the other of the film support plate and the pressure plate defines one or more grooves that mate with the one or more tongues, and
wherein the film sample is held between film support plate and the pressure plate during cutting.