Title: Image transfer sheet material

Abstract: Sheet materials are provided which are useful in preparing negative transparencies for use with overhead projectors. Methods for obtaining image transfer and preparation of transparencies are also provided.

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Inventors: Franer, Victor R. (Roseville, MN, US)
Burman, Darrell C. (Bethel, MN, US)

Application Number: 467898
Filing Date: 1974-05-08
Publication_date: 1976-08-17
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Primary Class(es): 428/143 427/152, 428/341, 428/476.3, 428/484.1, 428/500, 428/914, 428/918, 430/5, 430/148, 430/200, 430/252, 430/254, 430/368, 430/531, 430/536
Other Classes:
US Patent Ref:

2777781	Jan, 1957	Kordig et al.	117/92.
2880110	Mar, 1959	Miller	117/92.
3148617	Sep, 1964	Roshkind	117/3.
3595683	Jul, 1971	Newman	117/36.

Other Refs:
Primary Examiner: Drummond, Douglas J.
Assistant Examiner: Bokan, Thomas
Attorney: Alexander, Sell, Steldt & DeLaHunt