For hydroxypropyl methylcellulose (HPMC) products (METHOCELâ¢ E, F, J, and K brand products), propylene oxide is used in addition to methyl chloride to obtain hydroxypropyl substitution on the anhydroglucose units.or hydroxypropyl methylcellulose (HPMC) products (METHOCELâ¢ E, F, J, and K brand products), propylene oxide is used in addition to methyl chloride to obtain hydroxypropyl substitution on the anhydroglucose units.
Mr. Sandman by The Chordettes Songfacts. Mr. Sandman was written by song-writer Pat Ballard and first recorded by The Chordettes. It became the first hit for them, staying at #1 for an amazing seven weeks in 1954 and launching their career. The Chordettes eventually went on to peek into the Top-40 nine times total.
What is the song Enter Sandman by Metallica about? The song Enter Sandman is about nightmares and things that go bump in the night. There are various literary references in the song including Peter Pan, that reveal that the soâ¦ng is more geared toward a child's nightmare.